As a business person that has taken micro loans a couple of times from banks, I know from experience that banks will ask you how long you've been in the business before they will consider your loan application. If your business is below one year, they will not even consider giving you the loan, because you're not sure of making profit to repay the loan as at when due. So in  essence, taking a loan when you're not sure of making profit at the stipulated time of repayment is a bad business decision. Because the borrower might end up worse off than when he collected the loan, if the expected return or profit does not come at the repayment time. So it is better to start any business or investments with your own capital, no matter how small. So I agree with you that it is not good to take a loan to invest in bitcoin,  because it might take a longer time before you start to gain, but your loan repayment might not wait till that time.