DD is just 4 and I struggle to get suitable trousers for her - she mostly wears leggings. She is skinny and probably average height but her legs are long. The best fitting leggings are currently from Next age 2-3, but she's probably growing out of these. Trousers with the button elastic thing that you can make tighter or looser don't work so well on her, I usually have to make them uncomfortably tight so they don't fall down!
Any recommendations?