Which ironically is the problem with "Not your keys, not your crypto" viewpoint because realize it or not - key management is a major issue. "Lost your keys, lost your money"Also. the most important one of all: if you lose/forget your password and you have a few million sitting in crypto, you now have $0 I saw some dude in San Francisco was getting ready to lose like +$20 million because he was down to like 3 password attempts. I do have a little crypto and I do mean a little, but I have my password in 1password backed up to iCloud as an encrypted .dmg file and it is also wrote down in our safe. Me if I lost all access I could care less. If I was losing access to $20 million then yes, I'd be quite perturbed to say the least.
That is, if crypto experts can't always keep track of their crypto keys or mnemonic phrases... Then what hope do the general consumers that we're desperately trying to inform and on-board have? (obviously, this is IMO) For newbies, leaving the crypto on the exchange or helping them move it to, say, Celsius Network is far better then beating them over the head that they have to get a Ledger or Terzor or some softwallet that they'll inevitably lose access too.
Not that I'm saying you don't educate them - but IMO "not your keys, not your coins" comes later when they're more familiar, less green, and cognizant that there is no "forgot password" function if the forget or misplace their password / mnemonic phrase.
As much as it pained me to recommend so ... Back in the day - AOL was the far better "ISP" for newbies when compared to denigrating them if they didn't go to a "real" ISP.