^Good thing you do. It is "strange" indeed, human beings are tend to protect their lifestyle, at least those who value stability, even though unconsciously sometimes.
Child sexuality is smth he/she learns about as early as 10-12 y.o., of course, kids are aware of gender specific differences way before that and could even form sort of couples with each other mimicking adult's behaviour, but never truly understand it until early teen age. At this point pro-gay lobbists usually start running in circles screaming "it's not a choice" :D Of course, it's not, but it is surely not smth you inherit. Relationships between parents, social groups he/she interacts with, culture in general are all influential in one way or another on kid's psychology before he/she formed as a personality, which includes his/her sexuality. Though I'm not with alarmists in anti gay marriage camp, that homosexuals are great threat, but it's smth worth keeping in mind that homosexuals are useless for society in this specific regard -- this should be foundtation of our attitude to them on what's tolerable and what's not.
