I agree with you completely in regards to the question of motives. If the motive is to seek out a sexual relationship, then you may want to reconsider the idea of being around boys at all.

I disagree with your youtube advice. I see it as a waste of time and I have a hard time relating with the cults of personality that pervade the teen-idol and pre-teen-idol communities.

I'm not sure what you mean by red flags will come up fast.