That’s right, generally if you are addicted, you are addicted. Don’t think about pulling your father out, you should guide him correctly.
It's like a child falling in love early. If you stop it blindly, it will only make them worse. It is better to give correct guidance.
Suggestion:
You can also join in your father’s interests, communicate with him first, and make your father feel that you and him are on the same side, so that he will understand what you say. Go and listen.
First, start reading some introductory books on the stock market. It is recommended to read more catalogs. Generally, the catalogs are full of famous quotes and aphorisms, which are very helpful for novices.
Introduce books that you think are sensible to your dad, and you can use a small portion of your pocket money to create an account and play with your dad.
Start discussing the profit and loss of stocks with your dad, analyze more, and communicate more about your mentality. When there is a normal person beside you to give guidance, it is less likely to sink deeper into a situation and be unable to extricate yourself.
The stock market does have risks, but the risks can be controlled. You can play stocks, but don’t be addicted. Don’t invest all your belongings in the stock market. Don't deny your father blindly, but you must control your father's gambling. Let your father invest rationally, look at losses rationally, and think of losses as costs. Costs are unavoidable, but they can be controlled.
It is inevitable to lose money at the beginning, just treat it as teaching fees, and never go all-in on the market from the beginning.
Recommended book "The Wisdom of Stock Trading"
I hope the above methods will be helpful to you.