In telling people about bitcoin, even if they don't seem to accept it at first, you will see a good number coming to pick interest much later. Just because a person didn't accept your idea presented to him immediately doesn't perfectly mean he has totally rejected for at some point in life he might find reasons to give the idea a try even without you knowing about it. Let's keep the ball rolling bitcoin is here to stay.
Sometimes it's the way you approached the person or the way you presented your speech that make people not to accept investing in Bitcoin. People are used to hearing scammers promised them good profits so if you come with the same approach people won't invest.
When telling people about bitcoin, always make it very clear the advantages and disadvantage of investing in Bitcoin. Let them know the volatility rate of the market and tell them it isn't a must to buy immediately that they can buy with dollar cost average through accumulating.
Don't force anybody to invest in Bitcoin, just teach them and in the future they'll come back if they don't invest when you were telling them because bitcoin is a type of investment that grows on people with time as they'll see the profits they could have made if they bought.
Even if you tell them everything about bitcoin from its benefits and risks, they will still not care about bitcoin, because there are a lot of people who are stubborn and always doubt everything even though we tell the truth with them. moreover, not everyone likes risk or high volatility, many people prefer safe, low volatility, and that's why banking is still considered by many as an option. bitcoin is really not for everyone, and we don't need to impose our thoughts on them and force them.