To be completely honest if my parents found out that I talked to an old gay man, I guess I don't think they'd approve
but I guess that all parents would have some sensitivity and protection in this way? I don't think there's anything homophobic about it, if I was female and was talking to an old heterosexual man I guess they would be just as sensitive. I think it's also the 'perverted' image which is often wrongly associated with the internet and people who communicate on it, I think this is because there have been so many negative reports about chatting on the internet and it is an unsure environment.
I used to have extra french lessons after school because I was taking the subject earlier and my teacher was openly gay and is in his forties. My parents had no problem with that.
I couldn't care less. I never respect anybody any less because of their sexuality.