My unschooled kids are obsessed with Roblox, YouTube, and Minecraft. We fit into the category of unlimited screen time but I'm thinking about putting limits on. Some people start to act like jerks when they spend too much time on the computer and I'm noticing some bad words/habits getting picked up.
I'm thinking about implementing a system like yours. It seems fair and we can put some self-care and family contribution on the list.
I love unschooling! Foxboy will probably attend public school, but we do a lot of educating at home. Honestly, I'm only planning to send him to school so I can teach him to deal with that kind of BS, lol
I like the system we have because it is self-balancing, and teaches him that he limits his own freedom when he is careless toward others. It's not punishment, and nobody is angry with him. He just hasn't worked WITH his family enough to take from the reward pool (lil steem reference there).