Agreed. Definitely worth considering.The 4th gen iPad is 8 years old, isn’t it? I’d say that’s pretty outdated. You could probably get each of them the 8th gen and pay the same as one new Air. Just a suggestion. I guess that might make it less special for your older son, knowing that his little brother got the same iPad. I don’t know anything about rewarding/raising kids. Don’t mind me.
I have a couple of iPad 4s. I kept them on iOS 6 for the longest but eventually updated due to the GPS bug. They’re really slow and being stuck at iOS 10, a lot of new apps don’t work (e.g. Disney+). Normally, I give away old iPads to extended family but I don’t think anyone would take these at this point. I’ll likely trade in to Best Buy and use the proceeds on a Sky Blue Air 4 (pretty much a whimsical buy).