Is it normal for a 16 year old girl to mess up shoes quick?

I just realized that my friend messes up her shoes pretty fast. And by messed up I mean muddy, dirty, scuffed up, etc. Over the past year she messed up a pair of white Nike af1s in a month, a pair of white Nike air prestiges in 5 days, a pair of pink and white Nike dunks in two weeks, and another pair if af1s in 3 weeks. And I looked around and I notice a lot of girls in school wear dirty shoes too. I mean I mess my kicks up too but in a few months. So I mean is it normal for girls my age to mess up their shoes fast?