I would never try to convince anybody... I'm a big crypto enthusiast, but i still consider crypto a high risk investment... I wouldn't want to be responsible if they'd lose their funds.
On the other hand, if they'd made up their own mind and just asked me for assistance, i would gladly help them out

Convincing people to invest in crypto will always end up in quarrels or misunderstanding , the only thing I can do is to introduce crypto to people who don't have knowledge about cryptocurrency, then it is left for the person to invest in crypto or not to responsibilities of every risk. Investing must be a choice that comes from the mind, and should not be imposed on people. When one decides to invest willingly the patience, interest will be there unlike one who was forced into crypto investment.