I think it has been emphasized by many contributors here that there can never been an ideal percentage of funds that should be allocated to Bitcoin investment because it is something the individual should work out based on several factors. The percentage two individuals receiving the same salary will invest in Bitcoin differs because both might have different responsibilities. It is therefore not proper to allocate a percentage of personal income an investor will invest in Bitcoin. Another thing to also put in mind is that people have different priorities even as they plan to invest in Bitcoin. Someone might prioritize investing in Bitcoin and will allocate higher percentage than another one that might also have other priorities and can therefore go for lower percentage to be invested in Bitcoin.
What is most important is to invest an amount that will not represent so much financial burden on the investor so that the investment can be held for a long period of time because it is in long term investment that Bitcoin is best. This bring to mind the concept of DCA that allow the investor invest in a manner that will not be so much stress financially.
Well, anyway I just want to give a clear narrative that investing is with money that is not needed at that time, meaning that the money is not used.
As the process that I have done, I allocate only 10% and no more, then it runs smoothly because I do not feel disturbed by the cash flow that I allocate to bitcoin investment.
However, for those who want to budget smaller, larger or simpler, of course that is their right. However, the process can run smoothly because planning is not just a single purchase but can reach 100x purchases or 200x purchases because it is done per week.
Or lump sum is also good, at once every month and continues to the next month. It all depends on how they implement it. Generally to avoid mistakes due to the aggressiveness that he does, for that adjustments must be arranged in advance.