Well, only a few people in the world (% speaking) actually knows about Bitcoin, even fewer find managing a ledger/trezor or protecting crypto "easy", and even less do cold storage by their own.

Imagine talking to your father/mother about Bitcoin, Seeds and cold wallet storage... They most probably will reply "meh, I prefer to to a tranfer to my bank and let them handle..."

Also is not only about knowing the correct way, but also the anxiety that might cause for some people (if the process is not very straight forward) to think they are doing it wrong and might lose their funds.

I still have that sensation sometimes and have been around for many years.