The joy in trading is when the money which is been used to trade is owned by the trader. Normally trading is something that is unpredictable, one can't really know or see the outcome if it will be a big loss, small loss or big win, small win. When money that is been used for trading is owned by the trader if there should be loss he may not too feel about the loss, unlike when the money which was been used for trading is borrowed, in a case whereby the person do not have good source of income.
I know someone who started how to trade about four months ago. He is a beginner in trading, I don't really know how good he is, but to him he may feel he can always make earnings. I think he was so confident in himself, he had to borrow money for trading which he could not make good profit. As a beginner borrowing money to trade is not the best. It is not even advisable to use all the money one has to trade or invest talk much of to borrow to trade.
I agree with your opinion, if you are a newbie to trading in the crypto market, borrowing money to trade is not a wise choice. If you lose, the pressure to pay off your debt will become enormous. Take the time to study the market, read crypto-related knowledge, analyze the indicators, this will help us understand the market better. As you said, start with a small capital, we can control more easily