So I was told by our chiropractor a few months ago when i was there that when learning to walk, toddlers still should be wearing the soft-soled pre-walkers because hard soles inhibit learning to walk properly, & also can affect other things like bone/muscle development in their feet & their posture.
So at what point is it safe to put them in hard-soled shoes? Is it a certain age that's safe? Or after a certain number of months of walking?
At what age was your toddler, & how long had they had been walking when you progressed up to hard soles on shoes?