Do you not see the difference between a Venmo transaction and Bitcoin transaction?
With Bitcoin, a small mistake or oversight and you money is gone, and unrecoverable. So you can point and laugh at people getting scammed on Venmo, but you need "normies" to adopt BTC.
It's the same with Venmo, I have a few friends that have sent money to random people never to see it again.
There's really very little crypto-specific here, convincing someone to transfer funds to a scammer-controlled account is one of the oldest financial tricks in the book. It's still very common with bank wires.
With Bitcoin, a small mistake or oversight and you money is gone, and unrecoverable. So you can point and laugh at people getting scammed on Venmo, but you need "normies" to adopt BTC.