Why can't other profiles access my full version of the games on xbox 360?

I just bought a new xbox 360 as my old one had disc issues. I transferred the profiles via USB flash drive and redownloaded some games like minecraft, terraria, etc. I can play the full versions on my profile but now my kiddos can't. If I'm not signed in and on my account they only have access to the demo versions. How can I fix this? I tried deleting the games and redownloading but that didn't work.

You have to license tranfer. Whenever you sign your profile onto a new xbox as long as that account is the original account you downloaded the games on you can play without license tranfer. But if its a different account (In this case your children's accounts) you need to license tranfer. So sign in to your kids account, go over to the settings area and go into account setting (Something around there) and you should see license transfer. Hit license transfer then follow the on screen instructions.