The people I feel sorry for are those who have the financial capacity to invest heavily in Bitcoin but still have doubt over it's potential,
There are many things that they take into consideration that give rise to fear of investing in Bitcoin, their level of knowledge does not fully understand Bitcoin and its fluctuating price makes them still hesitant to get involved in Bitcoin investment. You can spread positive information about Bitcoin to them such as the lateness of famous people in Bitcoin like Elon Musk or other rich people who make Bitcoin a very profitable investment for the future.
Interest in starting to invest in Bitcoin must begin with proof of the results they have obtained from the investment, they need confidence before actually changing their money into Bitcoin. The situation you are experiencing often occurs in real life, people who do not have large capital are very interested in owning Bitcoin, while people who have the financial capacity do not have the slightest interest in Bitcoin.
My point is that if they already don't believe in bitcoin and haven't taken the time to learn about it, there's no reason we should spend time teaching them about bitcoin. Because if they really want, they can find all the information on the internet, including that Elon likes bitcoin like you said.
In my opinion, we should only focus on ourselves and how to make our investments bring the best returns. Furthermore, your success can be the most practical evidence for them to change their opinion about bitcoin instead of wasting time presenting unconvincing evidence on the internet.