Its okay because not everyone is as confident in their decision making skills as you may be. Everyone has a different goal so we need to respect that. Those who wish to hold, should continue and those who want to sell, should do as they please.
The market consist of both the bear and bull movement. It's only a matter of time for one to choose the market that's most favourable for oneself. Selling is one's choice and also holding is also one's personal choice. Bitcoin brings profits in either ways. There's enough categories for investors and traders to gain profits from bitcoin. Although the market is currently passing through the bear season with countless failed projects but bitcoin still stand out and it's still top, despite the red long candles everywhere on the charts.