It's just an outfit, for one day!

I can't really be the only mom out there who doesn't much care what her kid wears to school, can I?  I mean, I see facebook updates like, "I'm apparently the meanest mom in the word for not letting my 14yo wear snow boots to school," or "Green pants and an orange shirt with a necktie? I made my kid change this morning and now she hates me."  My question, which I never have the balls to actually ask, is "What does it matter?"  The kid isn't naked, weather inappropriate (no tank top in January), provocative, or gang-related.  So why is it worth a fight, or even a nag?  Kids have so very little control over anything; why not let them at least control their own clothes?  Ryan left the house today, in 18` weather, in a cotton halter dress over black skinny jeans (to make the dress warmer), a cardigan, and black tennis shoes. And of course her winter coat for the walk to school.  If she's too cold today, she'll learn not to wear a summer dress in sub-freezing weather.  If the kids laugh at her she'll either stop wearing dresses over jeans or she'll learn not to care what other people think of her style choices.  But either way, I don't believe that she'll look back on this as the day her mother failed her.  But if I tried to control what she wore all the time I think she would remember that, and rebel in other ways to compensate.  And that could be bad.