Mine only get to use the "privileges' (anything with a screen)in this house if their space are clean, and if they contribute to the running of the house, without being hassled, if I have to put energy into reminding them to do anything, then I don't have that energy to be a taxi, so no youth club, swimming, surfing, climbing, band practice, martial arts, sports training, ........................
mine like activities, they like having access to screen therapy, so they muck in, because they know if they don't life as they know stops, no warnings, they don't need any, I sat them down and explained why they need to be use to running a house, it's non negotiable, they know no different,
my middle son is the same age as yours, he cooks four times a week, as does everyone in this house, two dinners two lunches, they do the laundry, they clean the bathroom, kitchen, vacuum, chop wood, weed, what ever is going on, or needs doing.
if they don't do it properly they do it again, we have really busy lives, we (DH and I) haven't the time to compensate if they don't, so activities have to be dropped, as we can't drop work,
It takes one person four hours to clean this house, or it takes five people half an hour, when we come in (once or twice a day) everyone runs around for about ten minutes, all jobs done, then everyone is free to please themselves,
because everyone takes responsibility for the space, people tend to jobs as they appear, I haven't had to have words with anyone for years,
I tend to take the view my mother didn't give birth to me, for me to waste my life cleaning up after people who are perfectly able to clean up after themselves.
Anyone can opt out, but they have to explain to me why my life is less important than theirs, funnily enough no one has ever attempted that.
if you want privileges in this house you have to have had exemplary behaviour in the previous 24hr, it is no loss to me if they don't have screens or activities, and they know there is no chance of me/us not being consistent, so makes for an easy life.