When holding, we should target at least 4 to 10 years time so that we give enough time when possibly, we stand chances of making higher gains even though you are not obliged to sell off after this holding period too.
Even if you are mentioning 4-10 years or longer as a possible timeline to hold your bitcoin, you still seem to be thinking about bitcoin in terms of a trade rather than an investment since it seems to make little to no sense to build up a bitcoin investment in bitcoin and then transition into selling all of it.. but yeah, people have difficulties considering that they would continue to hold their bitcoin investment through their life, even if they might also be selling parts of it from time to time.
In fact, Bitcoin should not be considered as either a trading or investment asset, but rather as an asset that is a lot like holding gold in reserve.
Because gold is an asset that increases in value over time 50 years from now, on the other hand, if we keep the money we traditionally keep in a bank for 50 years, that amount will decrease several times due to inflation.
No, I am not saying to people that put all their eggs in one basket. If someone wants, they can spend the minimum amount they can afford here like 10$ per week but that should be regularly, like we deposit our salary on banks.
And if people take Bitcoin as their strategic reserve in this way, then in the future they will be able to beat the inflation of the fiat currencies in their banks and will be economically strong.
And besides, it's not like a person can't take any other strategy separately rather investing $10. In addition to the weekly investment of $10, he can also make a 4-year to 10-year investment plan if he wants.

Even though I might not disagree with you (since we might be saying similar things, but just choosing different ways to say it), your description of how to consider bitcoin comes off as a bit strange the way that you described it and the way that I understood it.
I don't really disagree with the idea of building up wealth in bitcoin, and then when the wealth level gets up to a certain level it can start to be used to live off of, yet if a guy has other sources of income besides his bitcoin wealth then the bitcoin income (wealth) may well supplement his other kinds of income, to the extent that he might choose to draw from his bitcoin or just live completely off his other income and even build up his bitcoin holdings from his work-related income..
It seems to me that people are able to get to a sizable level of bitcoin wealth that they are able to live off of their bitcoin for the rest of their lives without working, yet at the same time, if they choose to work, then they could live off of that earned income first, and maybe continue to build up their bitcoin from that earned income in the event that they might want even more bitcoin to build up since the more bitcoin they accumulate, then the higher their level of sustained withdrawal could be from their bitcoin holdings at any time that they might chose not to work or might not need to earn income from work in order to sustain their chosen lifestyle - and sure hopefully if they are at a point in their lives of withdrawing from their bitcoin holdings, then they would be able to do it in a sustainable way, which largely means that their bitcoin is gaining in value at a faster rate than they are withdrawing from it.
Very real and I like the fact that you were able to analyze some sustainable bitcoin withdrawal methods which when practiced will not only be for an investors profit making but also it will add more value to their holdings instead of it reducing in value. The point is bitcoin is not a get rich quick investment, but it has a potential wealth for the future and at such anyone venturing into it and for the person to enjoy this potential wealth in the future and to be able to live off of your bitcoin investment incase the person doesn’t have any other means of earning should not embark on selling or trading especially if the accumulation target isn’t met yet. It is advisable you even get to your over accumulation stage and even more so, with additional 20-25% of your bitcoin Value before one can comfortably be able to withdraw or decide to sell part of his holdings without negatively affecting his investment. With the right approach and sustainable withdrawal method one can be able to withdraw from his bitcoin holdings and it will not negatively affect his portfolio instead it will increase in value.