dating an older man..?

im 19 and hes 44….he has one daughter, 5 years old. and he says he has no problem with the age difference at all. we have so much in common (and no im not just saying that, we really do), and he believes that or commonalities can over come our age diff. i honestly dont have have that big a problem with him having a kid, but the age difference does bother me somewhat…
i just dont know if i should get into this, i mean i really like him but could i honestly date or marry a man 24 years my senior….
im kinda having a war in my head right now, mulling over things lol