The measures of your profit doesn't only depends on how long anyone holds but it is about the overall size of your Bitcoin portfolio and how long you have be able to hold that determines the value of your return, you don't only have to talk about duration or longevity of time you have held your Bitcoin and forget about the size your are holding, the two factors must work together when taking such consideration because there is a possibility of some one that has hold Bitcoin for short years to achieve the highest income from the bullish season probably based on the amount of Bitcoin the person hold, considering the compounding effects both in values not only in years.
If we have 0.5 Bitcoin and 1 Bitcoin that are bought on same date then 'percentage of profit' on both will be same if hodled for same duration. If you don't have huge money to invest in Bitcoin then don't get discourage rather keep investing whatever you have. Of course the one who has more money can go for more aggressive accumulation. In the end, percentage of profit will be same in both cases. It's important to understand that Bitcoin is for everyone not just for rich guys.
Even if the percentage profits is the same the one that has 1Bitcoin I mean the one that has the larger size of Bitcoin let's call it Mr B will stand a better chances with whole lot of flexibilities in taking profits and considering selling part of their Bitcoin which will not seriously affect their holding unlike the Mr A that has 0.5 Bitcoin, Bitcoin is not just for everyone but it is for anyone that has a discretionary income to invest, I have considered anyone buying Bitcoin to be a rich person because you were able to figure out a discretionary income which implies that basic needs are already been taken of, though being rich can be of different levels hahaha
, meaning that financial strength are not equal.