My daughter doesn't like the feel of the tops of regular jeans with a button. I had some hand me down pairs that had like a sweatpant band around the waist on the jeans. Can you link any you like.
Hannah Anderson has some pants with a sweat pant band. Mini Boden caries them as well. I have a few pairs but my daughter mostly wears sweat pants. Kohls has similar options as well.
They're usually labeled as "pull-on pants." DS will not wear any button pants, he says "oww, hurt my tummy mommy." So he exclusively wears pull-on pants. He has jeans, cargo pants, and cords in the pull-on style. I find them everywhere. Target (Circo and Cherokee brand), Children's Place (they have the best pull-on cargo pants), Gap.