No it should not matter. It is the people you live around and with that might have some issues with it though. You decided on how to deal with it all. Good-luck
Not if they are both of legal age
No, I don't believe so, as long as the relationship isn't where one could get arrested, naturally, that'd just be tragic for both. I, myself have never had an issue with age gaps. If I met someone, I wouldn't care if she was over twice my age as long as we had something. I'm not into older men, though.
Yes, if a minor is involved.
How old is he?