I don’t have enough Bitcoin (yet) to borrow for anything significant, but this is my ultimate plan. When I get enough Bitcoin, I would borrow no more than half its worth (in case the price drops), and then I would still have Bitcoin along with whatever property I buy with the borrowed money.
It's okay to borrow money, all of that is the right of the consumer, the borrower doesn't want to know what the money is being lent for.
Buy crypto loans and investments, if you are able to face monthly interest for borrowers, there is nothing wrong with holding on for the next few years, obviously you have to consider the risks that occur or before they happen.