My seven year old is still learning how to tie his shoes, and I think I’ve figured out why! The laces they sell with kids shoes are way too short. They look fine in the store, but once you take them out and re-lace them properly, through all the holes, there’s only three inches left to tie into a knot. You have to buy longer laces to give the kid something to work with.
I’ve noticed that too. It’s purposeful. They save money and you have to buy laces.