I'm sorry to say that most will call me a prude, but the child's appearal shows a decided lack of common sense, or manners.
Dress conservative for ANYTHING related to parents - unless they're going to the club with you and you WANT them to see your latest pole dance.
Pointing out that you need to 'hide the goods' a little better isn't from jealousy, but from (at least in my thinking) an attempt to help the individual not make the mistake again.
Jealous? not hardly. Envious? probably not. does that mean I'm a skinny little farkle that can wear the skin tight, etc? nope. Would I if I could? Nope. Didn't when I did have the figure, don't now that I don't have the figure, and won't when I get toned again. Ashamed of my body? No, not that either.
I just don't want you sharing your view and I'm not gonna be sharing a view w/you. Not intentionally, anyway.