When we graduated from soft sole to hard sole shoes DS used to stand there like he was rooted to the spot and couldn't move LOL. We just made a big BIG fuss of him "oh look at you in your SHOES" etc and when he tentatively took a step "oh aren't you clever walking in your SHOES, just like Mummy's shoes and Daddy's shoes" blah blah. A bit wearing but it worked...! As soon as he started to get angry we would take them off again. It was hilarious watching him walk in them at first, it looked such it was such a strange sensation for him.