My 3 y/o son has a fine motor skill delay - he has a lot of difficulty with pulling his pants/underwear/pull ups on and off, as well as with dressing in general. Needless to say it's a big hindrance to building his bathroom independence.

I'm looking for suggestion of pants that are easy to pull on and off. I mostly buy from carters, osh kosh, and H&M but I'm totally willing to look elsewhere if it will make this easier for him. TIA!