I uninstall/delete and then at some point in the future redownload/reinstall games all of the time on both iOS and Steam. In fact Apple does the delete for me w

I uninstall/delete and then at some point in the future redownload/reinstall games all of the time on both iOS and Steam. In fact Apple does the delete for me with some games automatically. Why should the developer of the game be charged a fee each time I do this?