~Snip
10% is from the income we get every month. This means that it is smaller compared to those who are able to budget 20% to be invested. So that everything can run smoothly, you can use the other 90% by managing it as well as possible in the coming month, so that the Bitcoin accumulation process will not be disturbed.
Actually, to save on expenses, it will depend on each person's life, if you don't splurge, then I think the remaining 90% will be enough to cover your living expenses in a month. Investment does require planning in managing our cash flow as well as possible because it will be implemented as well as possible every time you are due to buy bitcoin.
But there is one fact I can say about some people who actually really want to invest in bitcoin. They are government employees that I know and they are very interested in investing. They have a monthly income of less than $300, but it is difficult for them to save to invest. The main reason why they get into trouble is because of the inflation factor that affects the price of every item. $300 is not enough to meet monthly needs where all costs including accommodation are included, so not everyone can save 10% of their salary every month.
If they manage to save 10% of their salary, it means they don't smoke and are too strict about eating. In fact, food costs are not covered by the place of work, sometimes they have to go into debt to meet their monthly needs. Not to mention if they bear the costs of their family's basic needs, so as a result it is really difficult for them to save.