Of course, anyone who is ONLY paid once or twice a year is going to have troubles in regards to managing cashflows, and so they will likely need to hold larger amounts of cash for their various expenses, and then also there may be some discretionary amounts that are used for making investments. so surely, the less frequent a person is paid, then the more cash that they likely need to hold in reserves in the event that they might mistakenly calculate their various expenses through the year.
If they front load a portion of their available funds into bitcoin, then that money would be locked away for 4-10 years or longer, so if they run out of funds and/or back up funds and/or emergency funds during the time between getting paid, then they would ONLY have access to their bitcoin in terms of funds that would be liquid, so for sure, the less frequent a person is paid, the more otganized that they are going to need to be in regards to their cashflow management and/or back up funds.
The amount of such a person will not be very much. I have not yet known any source of income where salary is paid once or twice a year. It goes without saying that it will be difficult for such a person to choose the money to invest. It can be a bit difficult for such a person to choose the money wisely.
I am trying to find an easy way for them. Maybe it would be better for them if they can separate the funds for each month. For example, considering the needs of January, calculate the expenses for the month of January and set aside the money for that month, the same for February. It would not be bad to calculate the expenses according to the needs of each month and create a monthly expense fund. Then you can save the cash flow for each month after the monthly expenses and make sure that it is a little more than normal. Because you will get salary after a long time and your money may be delayed. After setting aside all the necessary funds, you can consider the money for investment and choose the money wisely. In this case, I think that this type of person needs to be skilled in financial management, because it is very difficult for a common person to choose money for investment with a long-term plan.