When someone is having financial crisis the mistake the person would make is going into Bitcoin investment, it's for the future and not something you'll look up to, to solve current issues, at that point the person is expected to tackle the more pressing issues then look for more source of income before thinking of going into Bitcoin investment else you'll not even last a year while investing on Bitcoin cause most of the profits or even all would be channeled into solving issues.
It will be an error to invest in Bitcoin when you are having financial constraints because at the end of the day you will find yourself in a situation where you will have to withdraw your accumulated Bitcoin to settle your primary needs that is why it's good to have a good source of income before investing in Bitcoin. Bitcoin is available for all at anytime you wish to buy so it's not like if you don't buy it today, it will get exhausted tomorrow. Invest at a time when you can be able to afford your daily needs and use the money that will be left after your expenses to invest.