Exactly. Credit scores are a scam and an incentive into having a credit card and overdrafting.
Instead, there are laws that restrict you from buying or mortgaging at a monthly cost higher than x% of your monthly income
It’s called “level of indebtedness” or “financial burden” and it’s typically 40% of net monthly income. So you cannot get a loan that would put your total monthly installments (counting all of your credits) above 40% of your income.
And I would add that if you are behind with your installments, creditors can only hunt you down for 50% of your income (subtracting any other credits you may have / owe), so you don’t typically go bankrupt because of loans. Of course, for a mortgage, you do lose the house, but I’m talking about general loans so-called “for personal use”.
Why Americans can't keep money in their pockets — even when they get a raise ( www.cnbc.com )