Coinbase will let me transfer up to $1000 worth of crypto off their platform immediately after purchase even though the funds haven't settled in their account yet. Every other crypto platform I've used, forces a wait of 3, 7 or 10 days before you can withdraw your new crypto.
You're correct. Coinbase definitely made it easier for people looking for a quick way to onboard fiat and to join the crypto ecosystem, just like AOL made it easy for people to access the internet back in the 90s.
I like your spirit, but what makes coinbase the best onramp for me is the instant transfer feature. I can't instantly find a gig that pays in crypto or instantly sell something and find a buyer who will pay in crypto.