If we continually invest in bitcoin for, hypothetically speaking, probably about 10 or 20 years. Is that timeframe sufficient enough to sell bitcoin? Its different from stocks as it does not give dividends and is not like real-estate that helps you preserve wealth as the movement of it fluctuates and is very erratic. Ive also seen some posts on other forums talking that in the far or near future, bitcoin would become a common medium of exchange and would further increase its purchasing power? I find it speculative but its also plausible.
If you leave it for 10 years or 20 years after investing and then if you get the maximum success of your Bitcoin investment and your mind says to sell, then you can sell. And if after 10 years or 20 years your mind says to keep more Bitcoin for five to ten years or even 20 years, then that is also your personal matter because you will understand when to sell and when not to sell. For example, if I started my journey with Bitcoin investment and now after 10 years I get a lot of success and my mind says not to sell now but to keep more, then I will decide whether I will sell or not.