Is it true that making kids wear shoes will help in avoiding his feet becoming too big in size?

Why do you want to keep a child's feet small? If he or she is meant to have big or small feet, they should be left to develop naturally. What you consider "big" now could be proportionate and just right for your child in a few months because they are growing everyday. Don't hinder the natural growing process, it will hurt your child in the long run. On a side note, this topic about keeping children's feet small reminded me of when girls' feet were bounded to look "attractive" and dainty back in some ancient civilisations. They suffered terribly for it :(