Transfer gamer status & games to another account

Will the kid who's account (gamer handle) on the canceled subscription lose his status on games?

If so, is there a way to not lose it, or to transfer it to the paid subscription?

You can transfer the licenses for any downloadable content for your own account. That doesn't transfer the game itself form one account to another though. The license transfer tool is set up for when you purchase a new console and need to switch your gamer
profile from one console to another.

There is no way to transfer games save data from one account to another because save data is associated with gamer tag

The only way to transfer points from one account to another is if both accounts are a part of the Family Gold Plan and one is the Primary. Otherwise nothing can be transferred from one account to another, as stated above,
including: gamer score, ms points, game saves, Live time and download content.

Nope. Nothing is transferable from one account to another. You will just have to re-earn your MP status'.