That's something that no investor should ever do. FOMO buying simply is the one thing that you never want to do, because inevitably you will be left with little options to work with when you want to liquidate your assets.
If these people are actually wanting to sell at near the bottom of a bear market, then all I can say really is that it's incredibly stupid.
Buying high and selling low, is simply not a strategy that works.
$20k will be a matter of time. In fact, when the next bull market comes by, it'll just be a matter of time before it peaks above the previous ATH of $20k. But BTC isn't a magical investment fund that's gonna get you rich, and people don't realize that during the pumps last year. Adoption takes time. Positive media coverage takes time. The conditions of the next bull market takes time.