Bitcoin price will surely rise to the highest price again so it is not bad to invest in it for long term. You won't get guaranteed profit from other coins and you won't get guaranteed profit from Bitcoin either, but with the history we have seen of Bitcoin in the past, it is expected that Bitcoin will not disappoint you in long term investment. So stick to the fact that you avoid other sheetcoins and invest only in Bitcoin. And of course DCA is a good strategy because it saves you at least one big loss
Simple people must have an understanding of making a profit from any coin and if they are the type of person who doesn't like being at risk then Bitcoin is the right place.
Even though there are risks in investing in bitcoin, the profits have the power to recover and that is why people view bitcoin as a promising investment.
Other coins have big risks, especially if someone does not have the ability to analyze the coin's journey and this is the problem because people think they are looking for quick profits by getting involved in other coins.
For this reason avoiding shitcoins is a step to maximize losses because not everyone has the knowledge to analyze the journey of certain coins. If you think shitcoins can generate big profits then people need to learn more about getting involved in them.