I think it’s the same reason games offer a cash shop for things you can get in-game. Sure they’re making billions but why not billions plus ad revenue? I don’t agree with the practice but the answer always comes back to money.
Sam didn’t spring for the ad-free tier and now has to have his time wasted?
My parents are close to 65 and completely out of touch. If you turn 65 during your next term you should be ineligible.