You probably wouldn't need laundered crypto, but you would need to be able to hide it from the bankruptcy court. This only works if you can clear the credit card debt.
I pay for my VPN in Monero. You can also get items shipped to an Amazon Locker near you with Monero. I agree, the adoption isn't great but it's better than nothing.
Edit:
Sorry, it's late and I'm tired. I misunderstood your comment. No it doesn't need to be laundered. It obfuscates the amount of money, recipient and receiver meaning it's as private as giving your friend some cash in person.
Yes, I understand how monero works. Yeah you'll get away with buying some groceries or whatever with it, but people who go through bankruptcy (especially who aren't rich, and are felons) have a close eye from the government on their finances. If you try to buy a house or a car or anything actually life changing with that, you're pretty likely to get caught and charged with fraud etc., unless you legitimise it, that is, launder it.
You just use it to buy drugs so you don't have to use your other money for drugs. Kinda like how you use your dirty cash for filling up your car, paying for groceries, contractors... You can basically build an entire house with cash and then sell it and pay taxes and shit.