[NAR8789]

Put another way, you're trying to build a "lesser evil" to draw children away from greater harms.

What if you took another tack? Instead of building a habit RPG for children, build it for the parents, and make the quests small things they can do each day to build connection with their children. I guarantee you: if the children are glued to their screens, then so are their parents.

It can even be chore-oriented, in that chores should be done together with children. I'd recommend maybe starting communication-oriented or affection-oriented though.

Since time is the primary thing parents lack, let your value prop be ways to save them time, whether that be by clever hacks or by helping them organize fitting these activities into their lives.