Yes, you are right, it is better if we don't take out any loans, because we don't have burdens to think about and maybe that will affect our peace of mind.
Even if you have to take out a loan, be wise in using it. We have to measure whether or not we are able to bear the burden we will feel. We should not force ourselves to do something that we can actually do without taking out a loan, for example.
If it's not emergency issues like health issues and tuition fees that do has deadline of payments, I haven't seen that thing that will make me take loan, doing it for crypto is the least I will ever try because for what exactly? Nothing is certain here and no matter how one plans itself, crypto has its own plan and because you don't control the market, there are thousands of uncertainty that will not end well.
If I want to invest in crypto and I don't have the means to buy it with my own money, I will give it a break and buy when I have the money. Investing with loan money will be a load on the head and you will also be having constant reminder. Don't forget there is interest rate that will continue to accumulate on it pending till when you pay back. It's a stressful journey.