i had my first kiss at 12, and 1st boyfriend at 13, but its not something to rush, so whenever the person is ready is the right age
I think once someone becomes an adult, say after 18, it's a little on the odd side if they haven't had their first kiss.
i'd say an average age is 12 or 13
I don't think age is a big deal, some people just haven't found that guy they want to share it with. Its a moment people cherish with the people they are with, and some wait for just the right guy.