In my opinion, there is nothing wrong with trying to make Bitcoin a retirement plan, I have indeed been running it from 2018.
I always buy Bitcoin every month for $ 50, then I store it in a wallet which I plan to retirement account. It doesn't feel like it has
been running for two years, my target is until 2030. Hopefully I can be consistent and in 2030 I can enjoy the Bitcoin that I have
and hope Bitcoin in 2030 the price is very high.