If anyone is planning to take loan to invest in bitcoin, then they are suppose to have a source of income which can be used to pay back the loan which they took, but if anyone is expecting to use the profits which they make from bitcoin investment to pay back their loan, then that’s completely wrong. If you are taking a loan, there will be interest on the loan, and definitely there will be a pay back time.
Much better not to take any loan. Look for some valuables that you can sell if someone is already going to the point of taking a loan.
Look for your things if they have a value and sell them and the money that will be taken from that should be the money to be used for buying BTC.
It doesn't have to go like this, while if someone is a true risk taker and goes up to that point, good luck.
You don't want your head thinking about these matters on how much the interest rates and if the market is down and such.