That's it, while the major institutions can do whatever they can and are able to buy in bulk and thousands of bitcoin. We as simple investors can do little by buying through DCA. And if you're onto the point that you want to sell, the matter is on how you are satisfied for your time of selling. But as you can see, many from the forum don't want to sell as soon as possible and there are more prolonged plans that they'd sell at the right time with a better pricing and no one knows when that time is going to come. As soon as you're wanting to cash out and you're happy with the price and that's how you reward yourself then do it.
We cannot compare what large institutions do with the investments we make. However, in this case we can conclude that currently many large companies are buying bitcoin, so don't sell your BTC holdings to those who might have difficulty finding a cheaper price like the first purchase we made. The level of complacency is always there but for now we have to be against taking it because in the coming years bitcoin will be more expensive and that is because of the scarcity that is occurring.
All those who come to invest in cryptocurrency (BTC) invest their capital by analisis the market,whatever you call trading and long term. The BTC market is a bit more volatile so it may take some time to understand but most investors are very skilled.
It is doubtful that there are any precedents for bad experiences in terms of bitcoin. As far as I know no one has suffered from short term investments in bitcoin. If someone is in too much of a hurry, it's a different matter. In the long run Bitcoin gives you greater protection of your principal. On the other hand short-term investing can cause your nerves to fray every moment. So everyone wants to protect themselves first.
Even though your explanation is confusing, I understand that you want to provide a constructive narrative on Bitcoin investment. It's just that you can mention Bitcoin directly without having to include Crypto. Apart from that, if you want to invest for the long term then don't get mixed up with trading.
If you are a beginner you can start with $10 with the DCA strategy, of course that is quite a start in approaching Bitcoin. Of course, when starting an investment, we may have to manage it as well as possible, especially since we are investing with $10, so at each stage we have to continue buying regularly every week.