My DD is 3 and she lives in trainers, joggers, t-shirts, hoodies & jumpers. Mainly because its easy to wash but also because i just cba dressing her in 'fancier' more 'girlie' stuff.
Whenever i see a toddler girl wearing a dress, skirt, tights etc, i just think it would be a pain to wash, a pain to get her dressed in it & that its a bit impractical for her age.
For context she spends half her time at nursery and the rest is spent with family, going to parks and being dragged round the shops... 