Exactly!
When you're thinking like OP trying to turn bitcoin back to fiat so that you don't end up "holding the bag" you still don't get what bitcoin is.
When your finance is good enough, you don't mind an exit or exits because your life does not depend on your Bitcoin portfolio, but it returns to how you start. Don't invest all money you have, and this means whether your initial finance is poor or rich, you already reserved part of your finance for emergency.
Let's say an emergency fund exists, and you don't have to cash out your bitcoin for urgent need. Next, if your finance is not too good, you will have to take profit, withdraw your bitcoin in each market cycle and bull run, then buy it back to get more bitcoins. You can fail to increase your bitcoin but taking profit (partially!) is never bad idea for any investor, especially in this example investors who need to use profit from investment for something.
Imagine your portfolio value now is $100k, and next one year it will be $50k, and in that future months you will need money, it's bad investment strategy without any exit plan. I don't mean to exit and return fully to fiat system.
- If you don't want to exit the market by taking profit with all bitcoins you have, do DCA for profit taking, withdrawal like this strategy.