Why should i invest in bitcoin or other cryptos ?
As somebody famous was saying "If you don't believe me or don't get it, I don't have time to try to convince you, sorry".
Bitcoin is not for everybody. And if you come with this kind of questions, you better stay away and just buy some land.
^ That is a perfect point if this guy doesn't understand the whole point of crypto. Just walk away and invest what you want, because in investing in BTC or cryptocurrencies, it needs knowledge for you to understand the whole system how it works.
The same story on what I have experienced when there is my co-worker asked me about BTC and made arguments, the last words that I said to him, "If you dont believe me, I will not force you, but if I am successful someday, you will know what is the reason". Nevertheless, if you think investing a land, precious metals, and other stocks that you feel which better, go on, and believe what you believed.