The same cannot be said for bitcoin, because bitcoin is like gold with build in ETF. It's easy to buy, easy to sell, divisible to cents. And it's not like the ETF will open doors to big institutions either. Microstrategy didn't need an ETF to buy nearly 1% of all bitcoins.
With a spot ETF, the boomers wouldn't need to learn how to secure their non-custodial wallets or exchange accounts, and they'll have direct access using their brokers and retirement accounts right off the bat.