I'm curious which person who get paid for $2K in fiat, then he immediately convert it to Bitcoin the whole $2K he got paid. Is such person able to survive without eating food and sleep on the street?
Maybe he will die for bitcoin because he doesn't eat and can't survive because he exchanged everything he had for bitcoin.
Then what kind of fool would do this?
50% of $2000 is still reasonable for survival.
10% of $2000 is even better, meaning he has emergency funds.
Is not only about using your full salary to invest in Bitcoin if for example you are receiving $2k monthly and the money for your essential needs for the month is $1500 meaning your Discretionary income for that month is $500 if you use $800 or even $600 to accumulate Bitcoin you may get into a financial situation that you will make have no other option but to dip hands into your Bitcoin investment, so that is why I'm advising that you stay within your Discretionary income so you won't get yourself into a financial mess, because any bill or essential needs you leave will be waiting for you and if you keep ignoring it, it will keep piling up and can affect you badly in the future.
So everyone should use only his or her discretionary income to accumulate Bitcoin the only time you may go beyond that is when you have a strong backup funds.
After basic monthly needs are met, discretionary funds are worth investing in Bitcoin a strategy some people, including myself use to accumulate Bitcoin.
This becomes problematic if one delays basic needs and prioritizes Bitcoin, as they may face issues later on. In such cases they might end up selling their Bitcoin prematurely.