How did you convince your father to invest in Bitcoin? I hope you didn't pressure him into it, considering he is the one taking the financial risk, not you. Your father is entrusting you with his money, so you should invest it carefully. Investing in your father's money can sometimes hurt your relationship with him. If you fail, he may lose trust in you in the future. If I were you, I would focus on finding a job or doing well in your studies so that you can afford to invest in your future. As you are currently young, it is not your money, and investing now may negatively impact your father's source of income.
But I believe that before his father agreed to sell their 10 cows for this investment, they already had some discussion. It is probably that his father understands (maybe not 100%) the risk and the nature of the market but because they love their sons and support his desire to invest, a father can't just ignore. Besides, his father can also give him advice if needed and I know the risk is quite manageable as long as we have knowledge and of course, when we have motivation and reason for doing this. He certainly doesn't want to see his father become disappointed.