I think the next step would be the one with colorful lights.
Parenting is a crazy stage of surprises. You get to do things that you have never done, have never thought of doing and the ones you promised yourself that you will never do!!
This falls under the third category.
In my defense, pappu had not been so much interested in walking. (Why should you walk if you can crawl 4 times faster? ). But after we bought this shoe, all he wants to do is to walk. Son, if you are that passionate about walking, why not try doing it yourself?