The reason why you shouldn't force someone to invest in bitcoin?
The concept of bitcoin is freedom! If you ever want to force someone around it, it deviates the concept of bitcoin so in a common sense it's not a forceful deal. One major reason why we shouldn't force anyone to invest in bitcoin is that whatever happens as a result of the investment the blame will be on you and that can be a very bad effect in your reputation. Some people may not know what you're doing for them hence will spread rumours about you that can affect your trust in one way or the other.
Did you think is good to force someone to invest in bitcoin?
It's a NO for me. It's not good even though you want to help but force is not an option.
What is the disadvantage of forcing someone to invest in bitcoin?
I think it's in my first response.
Bad reputation
Lost of trust
Unhappy state of mind
Etc
Did you really think the person is ready to bare the risk that is involve?
If the person is ready to take the consequences on him or her self it wouldn't be classified as force anymore.
What are your opinions towards this particular topic?
Perhaps it's not bad but poor in composition and additionally in one way or the other I have discussed this topic here in the forum.