I personally wouldn't start a conversation about bitcoin with anyone if they don't start it first.
The only people i start conversation about bitcoin with is just my family members, i mean close family members and i don't even tell them about my portfolio, i don't tell them about the amount am holding in my wallet, i just tell them about bitcoin, the advantages, why they have to invest in bitcoin and other necessary things i think they have to know about bitcoin. But after telling them all this, i wont still force any of then to invest in bitcoin, its a choice, they can invest if they want but it wont be okay for me to know about bitcoin and i wont introduce my family members to it.
I don't also start conversation about bitcoin with strangers for security purpose and anyone stranger that comes to meet me and want to learn about bitcoin, i will just enlighten them about bitcoin, but i don't even tell them about my holding, i even tell some that am not holding any bitcoin for now just for security purpose, some people will think since you are holding bitcoin, then you are rich which they might be planning something negative about you.
I will like to ask how it is possible to force someone to invest in Bitcoin because you can't force somebody to invest their money on something they don't know much about and if anyone comes to me and tell me to help them invest in Bitcoin I will advise them that I'm not up for the task that they should do investigation for themselves by using Google search engine.
Some people decide to introduce bitcoin to people they know, after telling the person everything they need to know about bitcoin, they wont have to wait for the person to show interest, they will start disturbing or forcing the person to invest in bitcoin, which at the end if the disturbance is too much, then they wont have choice than just to invest in bitcoin.
If anyone comes to me ask ask me to invest for then, i will tell them its a wrong idea to help them invest, but the only thing i will do is that i will guide the person on how to invest and he will be the one controlling his wallet and not me, i wont have access to his wallet address.