Especially among people who don't really pay attention to their budget, I'd expect this to be common. Maybe not as extreme as some of the apps are more aimed at

Especially among people who don't really pay attention to their budget, I'd expect this to be common. Maybe not as extreme as some of the apps are more aimed at professionals, but having seen the amount of money people who really can't afford it drop on useless subscriptions (e.g. antivirus for iOS) despite being told it's useless...