Probably because you don't ask anything at all... ;)
Well...I guess you are right.. :p
Because it's difficult to volunteer information. Makes one vulnerable, you know. Probably hurt in the past for doing so.
Maybe some guys have a difficult time starting conversations. So, if you ask the question it makes it easier for them.
At a guess I would say they want to impress you with their depth of character and ability to share...either that or we're just as needy as you are and let it show here =)
i know right!