You don't need to force people around you to invest in bitcoin, if truly you love them and you want them to invest money in bitcoin. First, give them free lesson that will make you to educate them about bitcoin and other cryptocurrencies investment, if you are rich enough you can give them some money to invest in bitcoin which I know it will motivate them to increase their capital when they receive positive results for the first time, Secondly, make them to understand that bitcoin is a decentralized asset that is not under the federal government control, and federal government don't have the jurisdiction to stop the growth of bitcoin in the general market, After pointed out to those few points, I believe they will be willing to invest what they can afford to lose in bitcoin.