I agree, most people are prone to panic when they see that their investment is losing value, and just then you need to be mentally strong and realize that you won’t lose anything if you don’t really sell at that point. Although following examples from the past, those who bought BTC in late 2017 and decided not to sell had to wait several years to recoup their investment or make a profit - which is a rather difficult task, especially for those who invest the money they need in everyday life.