for the parents here..

I'm not a parent but mine did the same, they told me if you ever want to try cigarettes just tell us and we will get them for you but don't try from your friends or strangers. I didn't try smoking until I was 19 because I wasn't even curious. As for alcohol it's very common to drink in celebrations like with relatives and all that so I had alcohol both with them and without them when I would go out with my friends as a teenager so they only told me not to overdo it and just talked to me about poisoning and the dangers etc. They have the same attitude about everything, like with sex also, they told me to only do things I'm comfortable with and not get influenced by what others are doing and just to use protection and be safe. I think the more a parent demonizes something and talks negatively about and restricts their children from doing, the more the kids are curious to try. That's why I had friends with conservative parents who did wild stuff and I had to cover for them while I reached a certain age until I tried out some of these things myself and never got in trouble.

I used to let my kids drink alcohol at home when they were younger. I don't smoke weed or drink alcohol (social drinker) and I don't allow smoking in my house. We actually created our patio area for entertainment and whenever the kids are home and their friends are over they drink and smoke weed and if they're to drunk or high they just stay over. So home is a safe environment for them.

I don't and never have smoked weed, so that would definitely never happen. I drink alcohol occasionally.

Tbh I'd rather not encourage alcohol use, but some wine at the dinner table when you are 15-16 is acceptable I think. The crucial aspect is parental supervision.

I use to purchase the alcohol for my son who was under-age at least i knew what he was drinking at a party, I use to leave the alcohol on the table at home and when he went he took the bottle

Most young people these days will be exposed to alcohol and drugs whether parents like it or not. I'd say it's much better and healthier to consume a little bit with your kids while educating them on possible dangers.
I never had that and consumed alcohol and weed in mass

We do not . Neither of our kids has reached 15 yet . My husband and I do not partake in illegal substances ( weed is illegal in Texas) and neither of us smoke . As for alcohol, when we are at the farm with lots of folks I can imagine they have snuck a frozen margarita or sangria out of one of the machines when we have them running . At home lots of people are peddling fentanyl laced street drugs and we had an issue with my son and that but got it stopped. Being a good parent is tough. Kids don’t have our common sense or experience. To be a good parent you have to be a tyrant at times . They can hate me for all the things I protected them from . They will definitely be alive and well if the choose to do that . 🤷🏻‍♀️

It depends on whether you think alcohol is a food or a drug.

I grew up having alcohol as a food from a very early age. I'd get a taste of almost anything. At one point, a little teeny tiny glass of wine with dinner. Why? Well we were eating full Italian dinners. Apertivo. Antipasto. Primi. Secondi. Contorni. Some red was really part of it.

It was the same with beer at family gatherings. Get a sip from an adult whose lap you were sitting on. I have a picture of my cousina with a PBR. Walking around the barbeque like she's 5 going on 35. I got sips of spirits, liquors, cocktails.

Strangely none of us have substance problems. I did some damage in my youth. But that's in my genetics.

Given I'm in recovery the answer is an obvious nope.

I talk to them openly about addiction and recovery though they are both grown adults now beyond the teenage wasteland.

I would let them have some alcohol with me / at a family dinner /gathering etc. Not weed or tobacco . Especially tobacco.

I will not allow him/her to have such things until S(he) is of legal age to consume them and/or dependent on me. If they are not sensible enough to decide what is good for them, it's my responsibility to decide for them until they gets adult/mature.

I never had anything in my life, and I don't feel there is any need to have them to enjoy or live life successfully.

Such a hard question now that I’m a parent. I was allowed alcohol at parties from about 15 or 16 I think from memory. I’m not sure how I’ll handle things when I get to that stage with my daughter. You make a good point though about rather knowing where they are, since it’s very likely they will do it anyway and lie about it.

I don't smoke "weed" and don't think drinking alcohol is all others seem to think it is.
I had an alcoholic father and somehow managed to pick a husband like that once too.
I'd prefer to teach my children you don't need either to have a good life.

My mom did the same. Legal barriers don't necessarily prevent harm or addiction anyway
I was 22 when I started smoking cigarettes and it grew into chain smoking. This wasn't due to youthful rebellion, though. My anxiety was terrible them, I wasn't yet officially diagnosed with OCD or medicated and nicotine seemed to help.

To be fair I'm now three years cigarette free.