Can my dad do this?

Are they a citizen or resident? The person must be a U.S. citizen, a U.S. national, U.S. resident, or a resident of Canada or Mexico. Many people wonder if they can claim a foreign-exchange student who temporarily lives with them. The answer is maybe, but only if they meet this requirement.
Are you the only person claiming them as a dependent? You can’t claim someone who takes a personal exemption for himself or claims another dependent on his own tax form.
Are they filing a joint return? You cannot claim someone who is married and files a joint tax return. Say you support your married teenaged son: If he files a joint return with his spouse, you can’t claim him as a dependent


Qualifying child
In addition to the qualifications above, to claim an exemption for your child, you must be able to answer "yes" to all of the following questions.

Are they related to you? The child can be your son, daughter, stepchild, eligible foster child, brother, sister, half brother, half sister, stepbrother, stepsister, adopted child or an offspring of any of them.
Do they meet the age requirement? [b]Your child must be under age 19 or, if a full-time student, under age 24.[/b] There is no age limit if your child is permanently and totally disabled.
Do they live with you? Your child must live with you for more than half the year, but several exceptions apply.
Do you financially support them? Your child may have a job, but that job cannot provide more than half of her support.
Are you the only person claiming them? This requirement commonly applies to children of divorced parents. Here you must use the “tie breaker rules,” which are found in IRS Publication 501. These rules establish income, parentage and residency requirements for claiming a child.

Not really sure, but I haven't heard you can't be on a parent's health insurance unless you're a dependent. It's til a certain age and other requirements I believe.

It’ll be cheaper if you’re covered by his, and it’ll be one less thing you have to worry about. Let him do it, see if it works out

If you're working a real full-time job,he cannot claim you.(You gotta do your own flippin' taxes.) If you're mooching off of him,YES he can claim you.I hope that's not the case.Oh yeah you gotta get your own health insurance.No hate here,just telling you what I have experienced.

Thank you for best answer!

You have a funny name 🤣