I can only think of a very few households who were unable to learn how to manage money when given support and coaching to do so. Two of them were couples with mild LDs, two were single people with MH issues, a couple had brain injuries and one was where one partner was an alcoholic.
Most people can learn to manage their money with a bit of help. Sadly, funding for that sort of work is rarely available.
I agree that most people could learn if offered the opportunity to do so, and that the opportunity to do so is vanishingly available.
But, there's no teaching someone to stretch money, if what is coming in, does not equal what needs to go out, no amount of budgeting skill is going to fix that. If your basic outgoings like rent, council tax, water rates and school uniform etc exceed what you've got coming in, what then?
I've been in that situation and it's really obvious that some people haven't when they start going on about cutting your cloth etc. If your cloth isn't big enough to start with and you've no means to increase it, then it's not going to work no matter how you cut.
You can make all the necessary cuts and still be in the negative, because some things, like rent and council tax are non negotiable, you can't cut back on them if you suddenly have time off sick or your employer decided to slash your hours because far better you suffer the concequences of reduced business than them.
I can tell you, it's fucking miserable to be recovering from surgery, sat with the curtains closed so the bailiffs can't see in with the council telling you that you should just pay what you owe and if you are entitled to any benefit because of losing income then it'll be applied and you'll owe less in the future, but right now pay up or the bailiffs are coming in and you'll get penalised for this happening financially, ensuring that you stay in the situation longer.
While freezing your backside off because you can't afford the heating on because you've cut that back to buy new school shoes or otherwise your child ends up in isolation for not being in the correct uniform.
Then you're expected to get better and get yourself back to work and leave the fact you've just had yet another wash in cold water so you're clean and tidy to meet the expectations placed upon you, at the door and be professional, though you don't get regarded, paid or treated as such.
Then you read that you waste it all on fags, booze and wide-screen TVs and really, it's your own fault because you should just have a better job anyway.
I'm away from that situation now, but by God, I remember what it was like to be the lowest of the low and ridiculed for it, while feeling like other people are managing to get on with their lives and do their better earning jobs because I'm here like some mug being paid a pittance to make sure their elderly and vulnerable relatives are looked after so they don't have to.
It's absolutely miserable but a clear sign that people like me, well we don't matter.