How can some people be married for 20+ years?

They make it work. It takes commitment. You don't just let go when things get tough.

Obviously they know what a relationship requires in order to last.

50 years for my parents, they get along great, have always had someone to travel with and got through the good and the bad of life.

44 years here. It's a good life if you have the right partner. Thankfully, I do.

[c=#359E00] because you can't or you don't understand, it doesn't mean other people can't do it[/c]

Without technology dating required more effort, so you had more of a reason to work on relationships

Nowadays it's like - you suck (or aren't sucking enough), bye

My parents were married for over 45 years until my dad's death in 2004.

Love or some shit idk

Love

How can some people change partners like they are just an accessory and no more important to them than say a mobile phone "i'm bored with that i need a new one". 😁

I'd love to have another ten years or more with the Mrs. It'd be heaven. 😇 Love- there's no substitute.

Kids. They're like glue!

Alcohol