Bitcoin users must be careful with fund storage, no matter the fund is small or big. If they are careless with small fund, they will make their habit of careless storage so with big fund, they won't become more careful. Losing a fund is a loss, no matter it is big or small fund.
The links are much appreciated! Truly, it's important to start a good habit in order for it to grow with time and become really useful in the times to come.