Those you might be seeing selling their Bitcoin just because they ran into problem are doing such because they don't understand the value of have an emergency fund at hand. There are many traders and investors that had made this mistake in the past and it wouldn't make sense for us to make the same mistakes again. Crypto investment should not be seen as a means of making quick profits from the market.
The DCA strategy is meant to guide every investor to be very conscious when making an investment so they don't suddenly cripple their own investment as a result of not have a reserve or emergency fund that could prevent us from selling our crypto portfolios just to settle the problem in hand. The crypto market is broad and it should be understood that investing in Bitcoin can be highly profitable when we tend to hold for as long as possible; this can be done for as long as possible so the investment can grow well and gather substantial profits for us.
It is very important to always take note when you are talking about Bitcoin to always refer to Bitcoin as Bitcoin and altcoins as cryptocurrencies. Referring to Bitcoin as a cryptocurrency makes it seem as if Bitcoin is just the same as altcoins. Bitcoin remains Bitcoin and can't be classified as a cryptocurrency like other coins.
Most people who sell their bitcoin, perhaps because of some challenge, do not really understand what they are involved in; that is why they always prefer to sell off to solve their problems. Those who truly understand bitcoin investment stick to their investment without terminating it, no matter the challenges that may arise, because they know what they are engaged in. When there is no understanding in bitcoin investment, there will always be an excuse for someone to sell bitcoin to solve a problem.