As a childcare provider, boots for toddlers are hard to find according to many parents! Seems not enough stores carry the really small sizes and not enough stock of the ones they do.
I would check out the swap and shop pages and marketplace on Facebook tbh. Most toddler boots are only worn one season and in excellent used condition anyways. Save yourself some money and hopefully headache from having to go store to store!! And you’re helping the environment by reusing

win win! Good luck!