It's not as easy as it used to be by far, but still it is easy I think. Although people need to have some personal responsibility no one makes you overspend.
I'm 36 now. When I was 18, so quite a long time ago now I took out credit cards and overdrafts to basically (and irresponsibly) supplement my spending. I'd grown up with very little money, single mum never being able to have anything that wasn't an essential. Credit cards meant that I could just buy a new top without worrying about it (I know that's wrong!). I clearly recall withdrawing cash on a store credit card (extortionately expensive!) to go on a night out. I am bloody ashamed of that.
When I had 3 credit cards and an overdraft bigger than my monthly salary I went to the bank to ask for help. Instead of actually helping me, they gave me a loan which I used to pay off the cards and OD. And then ran them up again over a few months. Went back, they gave me a second loan. This happened again and again until I was about 23, with maxed out credit cards, a huge overdraft (compared to my income) and FOUR loans. I was 15k in debt, on about a 12/14k salary. It only stopped when I was eventually refused for a fifth loan on the basis that my debt exceeded my salary. They sold me a shit ton of PPI too, clearly telling me I wouldn't be approved for the loan without it.
I take responsibility for my reckless spending. It was a stupid and ridiculous way to behave. No one made me spend it but it shouldn't have been possible for it to get to that excess.
Luckily I spoke to my Dad, told him everything. He gave me a massive bollocking for being so stupid and very generously agreed to take out a joint loan with me (they'd just stopped guarantor loans!) on the condition that he would sit with me whilst I closed all the accounts, I would open a basic bank account with another bank with no overdraft and that he would check my credit file every month. I was to pay every penny back. It was pretty humiliating but I was so lucky that he did that.
I did pay it, it took me three years and luckily it didn't affect my future access to sensible grown up credit because I never missed any payments (just took out loans to make them and did things like pay credit cards with credit cards which isn't allowed anymore). I got all the PPI refunded after I'd repaid it all and it was nearly 5k. I used that to open a savings pot that eventually turned into my house deposit. I also bought my Dad a swish meal out as a thank you (that I could afford by that point!)
The rules are different now luckily, it's much harder to get credit than it was 20 years ago. Still, I can see how it happens.
I'm now super sensible with money. Have decent savings, pension, only debt is our mortgage. I do have a credit card, my own and a joint one but we pay them off in full every months without fail. We only use them because we get cash back and never buy anything we can't afford. I am glad I learned my lesson young.