My research show BTC can hit 100K$ by 2025, What I noticed is Most people sell Their Bitcoin for 10$ Profit, they dont hold btc and they sell it for 10$ or 20$ profit, these people will never get rich.
Well, back your research up with some analysis, because when I see some prediction, I like to pay attention more to people that can show me the charts or how they went about arriving at such value. I believe that there is always formula for everything and there should be a formula that made this figure possible. It is not also a bad thing if people take profit on their investment.
Those people you say sell for that profit may just be doing so for short term trading and that still does not mean that they dont have a long term investment coin. Take for example me, I have an investment in bitcoin and some other coins that I know will last for lifetime, and at the same time, while waiting for those investments to mature, I still have some money that I use to make profit on a short term purpose.