long term and investing is likely 10-20 years or more, yet frequently we refer to 4-10 years and above in order to include the possibility and consideration that there might be some people who might have shorter time-frames due to their age or their health or perhaps some other kind of life event that might cause them to have to sell in a shorter timeline..
You explanations are okay @JayJuanGee but talking about age as one of the factors that can lead to an investor deciding to sell their bitcoins earlier than expected, don't you think it will still be a good idea for someone who is quite old to pass the long term goal to their offspring instead of selling because if he decides to sell due to old age it will still return back to Fiat that has low monetary value when compared with bitcoin so it will not be a good idea to sell bitcoin and still return back to keep Fiat again, it also makes me to think why someone who is quite old will consider to just invest within 4 years interval (just an assumption), what if at that time the price of bitcoin falls will they sell at lost just because of their age?
If an investor decides to sell their bitcoin within a short time frame due to health issues it's understandable but yet keeping emergency funds for such situation in the future will be best instead of selling except the health challenge supersedes the emergency funds before selling their holdings to attend to their immediate challenge will become an appropriate decision.