I don't have a 401k anyway. It's just what I heard. If those are the rules, then Bitcoin IRA's are dumb.
Well if you are going to have an IRA you may as well have one that's going to give you the best return possible & nothing beats bitcoin. You can always stack stats in your own cold storage and have a Roth IRA to give you tax free retirement money too. When you retire you can withdraw the bitcoin, you just can't self-host while you are contributing.
You also have to consider hostile govt or institution risk. You are absolutely exposed if you trust a custodian but not at all if you hold 2/3 keys. Everything is trade offs. But playing dumb fiat games will win you dumb fiat prizes. Testicular fortitude to hold your ground when faced with a formidable foe is present much in today's society. Everyone loves to ask permission "for their own safety". Play the game but don't be lulled into "safety" by following every fiat rule out there. This is a technical revolution and we have the better tech. Act accordingly.
Isn't present much***
Yeah I'm not advocating bitcoin IRA's just answering a question. Besides, not everyone wants to self-custody and that's just a fact that a lot of bitcoiners don't want to face up to. Some people are not going to take on that kind of responsibility, they'd rather stay with the convenience of fiat & banks and bitcoin ETF's. Convenience is so much easier, it's why most people don't take privacy & security seriously on the internet because that involves effort & responsibility no matter how many times they are told the importance of it.
Which is why this is a technical revolution. The defaults must incentivize better behavior. Many will learn this the hard way.