Yes it is okay. Usually girls like boys older than them.
This would depend on what the parents think about it. It is not too unusual for a 13 year old to date a 15 year old but some parents wouldn't want a girl that age to date anyone. It also depends on what you mean by date. A friendly trip to the movies or a church event probably wouldn't bother too many parents but not many would approve of a more serious sexual type relationship at that age.
No, a 15 year old cannot date a 20 year old in Australia because the 15 year old is a minor.
yes
it is both are underage
Yes, its not illegal till your 18.
Date, legally, yes.
No
anywhere?
NO
No.
they sure can!!!!
No.
no you can't date a girl that is 5 years old
Yes
no
No..but yes
no
kind of
yes