Sorry, I meant than using Zelle, a credit or debit card, Paypal, etc. Last time I looked, most crypto is completely traceable because of the public ledger (monero does built in illegal in the US money laundering style transaction mixing to try and make it less traceable, not sure how well that works, but the rest apply to it), and the distributed public ledgers are the only way it works. I'd argue the way most people can get crypto requires a bank account tied to something like Coinbase, so that's a link from your bank, to your crypto wallet, then the rest is even more public.
However, for most people, crypto doesn't work like cash, and does work like a stock. You need a special broker, you need to move money with fees into the crypto account, then pay fees to buy the crypto. This is way more analogous to stocks, so that's how people think of it, than cash or bank transfers.
Assuming you can figure out the right crypto to buy, now every time you spend it or try and send it to a different wallet, there's stupid high fees for the common Bitcoin and Etherium networks (I haven't actually tried to use the other ones as they get very obscure). We tried to move $30 dollars in Etherium to a different wallet (granted this was 4 years ago) and it cost $15 in "gas fees". This makes me long for the 3% credit card processing fee.
After the fee, it takes quite a while to transfer, I recall Bitcoin took over an hour, and it was like several minutes or more for Etherium. Paypal, Zelle, Card are all instant, or maybe seconds.
Basically if you're not buying something highly illegal, there's 0 benefit to a normal person and masses of costs, complexity, opportunities to get hacked and all your crypto stolen, and exchanges to either collapse or also steal whatever money you had in there. It doesn't solve a problem, and so normal people are right to not use it. I'd suggest after 13 years it's only been used by speculators and scammers "successfully".