There is still a 4-year delay in buying Bitcoin, but why don't you keep your BTC and get rich because you sold it at the time. And now that you are hold with it, you will be a rich man with a happy life. If nothing else, we must not follow it anymore. Bitcoin makes you rich and rich, makes our lives happy.
It's easy to say that we should hold and sell at the right time but that's the challenge when we're holding and trying to look for the right time to sell. That's the goal of many investors and that's to become rich and we're all looking forward for that day to come that the Bitcoin we'll be selling is on an ATH price.
And why some can't keep their BTCs? It's because of some events in our lives that we've got no choice but to sell. We can always buy back when the price goes down but if you'll check some older news, there have been whales as what we call them that are still up-to-date holding Bitcoins.
I am not that someone who bought that early but I'm happy despite not being that much rich, maybe the next years would be my lucky years although I am not in a hurry and I want to take it slowly but surely.