The solution for the 25-year-old son who always buys funds is as follows: Although investing in funds can bring certain benefits, excessive buying of funds may be risky.

As parents, you should pay attention to your son's investment behavior and intervene in a timely manner.

It is recommended to communicate with your son to understand his reasons and purposes for buying funds, and remind him to invest carefully and avoid blindly following the trend or acting impulsively.

At the same time, you can advise your son to seek professional financial advice and learn more about investment options and risk management.