I think, bitcoin is not a good savings for retirement. it's because the price is moving fast. while pension money is used to enjoy the day when we are no longer working. if we choose to save some of the money we have in the form of bitcoin with the aim of retirement, then I think this is a wrong understanding, because if someone has held a large amount of bitcoin, then it is said to be a bitcoin investment, where the investment can have high price in the future, or have a lower price.
If a person's goal is to retire, he or she should think about a constant income, perhaps such as rented real estate, a business with a steady income, or perhaps a large savings account. However, if someone has the feeling that they still want to invest long term, then bitcoin might be one of them.
I understand what you mean dude, but of course that's your assumption because if I were in that situation I would have retired from a company I worked for a long time and if I had a deep understanding of Bitcoin there would be no reason why I wouldn't invest in it.
But of course 50% that I will get from my retirement fee I will not think twice to put it in Bitcoin and I will sell it when the bull run comes if the price value is more than 100k$ or more, I will do that simply because for me it is like a mutual fund thoguh it is not, This is just for my perception and I don't know about others.