Before answering this question, I must tell you that there are different types of funds, and different types will have different risks and returns. Among them, money funds and pure debt funds are the least risky, while stock funds, hybrid funds and index funds are the most risky.
If it is a low-risk money fund or a pure debt fund, then if you ignore the fund for five years, you will generally make a profit. The possibility of making money is relatively large, and the possibility of losing money is relatively small. Because neither of them has invested in the stock market, the risk is small and the income is relatively stable, but they will not make much money, mainly depending on the amount of principal.
If the risk is equity funds, hybrid funds, index funds, etc. Then it is impossible to predict whether to make money or lose money in five years, because such funds are risky and unpredictable.
Therefore, if it is a fund type with relatively high investment risk, it is generally recommended to look at it often. If there is a loss, stop loss in time. It can't be said that no one has been interested. If you choose a bad fund, you may lose money, so you need to be cautious in your investment.