In my opinion, I don't think they can force someone to invest in bitcoin or any other business, you should know that they have the interest to invest already. when you explain to them they will try to complain so that you can explain better for them, and when the market is bad, they can put the complaint on you, or probably you can give them some funds to recover. If you see they force someone to do something, they show him what will destroy his life, and he will obey and do the needful to protect himself, but with bitcoin, business, or trading, they can't force anyone to do it.
Why we go even force anyone to invest in bitcoin, e no really make sense now, if you wan introduce anyone into bitcoin, just make sure say you tell them the necessary things which they suppose know, if them really get interest to invest, then allow them decide if they go invest or not.
If you don Dey force person to invest in bitcoin, then some people go don Dey reason say na scam you wan scam them, and anything wey make dem lose money if they invest in bitcoin, then make you know say dem go tag you as scammer, nothing wey you go tell d person, wey him go believe you, so the best thing is don’t force anyone to invest.
If you wan introduce anyone to bitcoin investment, e better make you allow them know both d positive, and negative aspects of bitcoin, no just go Dey brainwash people with only the positive aspect of bitcoin, make them know about the volatility nature of bitcoin, you should let them know they can lose money if Dey invest in bitcoin.