I don't like girly clothes on any guy, and I would indeed feel unconfortable making my son wear pink clothes, unless he's gay (oddly I'd be okay with that). Let's say I'm okay with others way of living, but I want me and my relatives to be "normal", "their gender".
When I was about 13 I had to wear that giant pink ski uniform that was too small for my big sister. My mom said "at least we can easily spot you on the snow!" I just hated this. I wanted to kill myself in an avalanche, but I didn't want the news to show on page 1 "Avalange kills
GIRL on mountain".
Thank GOD it wasn't ski vacation with school... That would have socially kicked me out of any group at that age.
What also I often dislike is long hair on men, and short hair on women... I just plainly don't like that, but I'm not sure if it concerns gender education.
Furthermore, I'm okay with strong girls but not when she is totally unable to show a little feminine side. Same otherways: boys do cry, but jeez, not for every single thing !