Because you're easy. You don't ask for as much as someone his own age. And by easy I don't mean sexually or anything. But a girl his age would be pushing for marriage and family. With you, that's probably not on your radar for several more years. So he gets less pressure. And a girl his age would be more demanding about his career and ability to take care of a future family. Again, not something that you're probably looking for at this age.
It is, but it doesn't mean that the relationship won't work. I've seen successful relationships with bigger gaps. I can't say why he wants to date you, each person has different intentions, but if you think that he's genuine and if you wanna give him a chance, do it.
I think it depends on the person. It would probably be too much for some people but others would be able to make it work. You're an adult so you can date whoever you want. There's a 6 year age gap in my relationship, and we have no issues. So, as long as it's working for you, it doesn't really matter what anyone else thinks.
You're 19 which I think is a bit too young to be dating older dudes (just my personal opinon) but that said I've dated age gaps of 12, 22 and 25 years. It doesn't mean you won't have anything in common - me and my ex are so similar in our tastes, music, film, games etc and he's 37, some guys just like dating younger women, makes them feel good I guess.
That's no too much I've known a happy couple that had 14 years difference and another one with 25 years difference so your age difference is actually not that big and if you really love him then why care what other people think. Love is the only thing that matters in a relationship right ;besides being attracted to your partner.
It's a pretty big age difference but that doesn't make it not okay. You are legal so you have the privilege to date a much older guy. The main reasons why some guys like to date younger women is because of their youthful looks and they see themselves having a future with a younger women, since younger women have a very low chance of aging too soon and they're at their fertility peak.
Its a lot for your age (in my opinion cause I just turned 20 and wouldn't like a gap that much) but its down to the people.. some people are more mature.. some people at 19 have their life together some dont.. etc etc etc.. your situation and personalities is what makes it work. but in my point of view men only like younger girls for one reason only...