Money will never be earned.
If I bought 22 bitcoin years ago, I will sell without hesitation.
Allow me to use this part of the money to buy other altcoin, and then come up with some to buy a few mine machine for myself.
It's easy to say so... Why to sell if bitcoin is still growing?
You have a good point but bitcoin, being unpredictable, we don't know when will the price go down. We can say that it is still increasing but the price dump from $11K back to $10K.
Bitcoin made a lot of people paranoid because of this question, to sell or to hold. If someone chooses to sell, the price pumps, making him disappointed or regret on what he has done. When you hold and the bitcoin price dumps another regret. I guess we must come to decide when to sell it or to hold it, the price where we will not be regretting that we sold our bitcoins and juts enjoy the profit you've got.