Kids don't develop arches till closer to 6 years old. Most kids shoes should be fine. I do like stride rite for how supportive they are and how well they hold up.
I would also recommend Stride Rite; they have a great selection, and the sales associates always measure the kids' feet to see if they need wides, etc. I just had DD in there today and they said she actually has high arches so she suggested some different shoes for DD. Also, they have buy one, get one 1/2 off on all sneakers and sandals right now!
Re: My 2 1/2 year old DD has flat feet. Can anyone suggest
Kids don't develop arches till closer to 6 years old. Most kids shoes should be fine. I do like stride rite for how supportive they are and how well they hold up.