Nothing if they don't like it it is their problem i would suggest that you just keep making money and let them be for what they want to be after you have made success in bitcoin they will come to you and ask how you did it then they will regret their choice.
I really did not like Bitcoin but after my friend's success. I just came to my friend and I told my friend to teach me. I thought they did not like Bitcoin because they did not know how to get it because I used to be that way.