My cognitively disabled son is spending impulsively - we have had to kill his debit card.
OTOH US disability rules mean he can't accumulate savings, so when he works near full-time he HAS to spend or we have to stuff money in the screwed up ABLE plan system. And neurotypicals spend money on, for example, cable TV, cigarettes, and the GOP.
We are trying to figure this out ... Experimenting with prepaid debit cards ...