I wonder if there are still people holding bitcoin from buying bitcoin at $1, they hold it until now. If there are still people, they would be rich right now. I used to buy bitcoin at a cheap price and quickly sold it because I felt I had made a lot of profit, because I didn't think the price of bitcoin would be as expensive as it is now.
It is unlikely that there is still a small possibility, but they sometimes forget that they have bitcoin assets that have not been sold or that there are some wallets that have forgotten their private keys.
If you have a wallet or bitcoin core in the past that you forgot to open now and still have bitcoin, it will be a treasure that provides extraordinary profits, but yes, most of the time no one holds it from the price of bitcoin very cheap to the current ATH.
I just sold bitcoin at $3k-$4k, but it couldn't be helped, it was a process and I don't regret it at all.