I bought these for an 8 year old who goes to a Christian school. This is exactly what is called an "acceptable” type of pants. What I like about them is that they have an adjustable waist.
School Uniform Pants & Capris for Girls - Premium Skinny Stretchable Clothing
40 Review
Comfortable and 😌 Versatile Amazon Essentials Girls' Sweatpants
39 Review
Premium Organic Cotton Girls' Clothing by Hope Henry Riding: Sustainable and Stylish Fashion
33 Review
Water-Resistant Snow Pant for Girls - Amazon Essentials
35 Review
Thermajane Girl's Cozy and Comfy Thermal Underwear Long Johns Set with Fleece Lining
46 Review
Eocom Pairs Childrens Winter Animal Girls' Clothing
64 Review
C9 Champion Girls Supersoft Bright Girls' Clothing and Active
46 Review
Amazon Essentials Little Short Sleeve Leotard Girls' Clothing for Active
61 Review