It's not illegal to date somebody no matter what the age difference is. However it is illegal to have underage sex and her parents might not be so happy about the five year age difference (especially since she is only thirteen).
So basically; it's not illegal but not advisable either.
No..but yes
no
Yes, it is legal.
There are no laws against it.
yes it is.
yes.
Of course it's legal. She's 18, making her a legal adult, same with the boy.
sure! why not?! you can date who ever you want!
no. no.
Yes it is.
No, but do it anyways.
Yes but sex is not legal until the minor is 16.