I agree with you, in fact, Bitcoin is a currency of such a nature that the more you wait to invest, the more you will fall behind. Every moment is very important to start investing in Bitcoin, invest first if you have money, the more you think about the value, the more confused you will be, because the value is never constant. The time and opportunity that is lost once, never comes back later. So never delay in starting investment, delay means losing time and opportunity. A skilled investor knows the true nature of Bitcoin, that is why a real investor never delays in investing. Whenever he has money to invest, he invests, and they are never afraid of instability, because instability is an opportunity for them. Because they are very sure and optimistic about the future of Bitcoin.
If someone doesn't have a clue about what is bitcoin then forcing them to buy can be a bad idea, what if the price crashed once they bought and you are the one who they will blame you. So guiding them when they realize bitcoin is their path is good but when someone still haven't made up their mind can take their time. Better late than never cause if they do it for wrong reason and faced the loss they might exit the market and will never think about coming back.
So this isn't entirely about the price, it's actually the cause that should drive them to invest, a person who truly understand bitcoin will not be shaken by the volatility so the short bumps and dumps will not likely to alter their strategy if DCAing or whatever they want to practice.
If you want to tell someone about Bitcoin investment, first tell them the risks. Because there are many people who, if they tell someone a thing, only talk positively about it, they do not tell the negative aspects of that thing, but this matter becomes a problem in the future. In the same way, to tell a new person about Bitcoin investment, you must present the all kind of risks of Bitcoin, and tell the truth, because Bitcoin is never risk-free. And also, forcing someone to invest without explaining Bitcoin well is only risky and in the future when Bitcoin dumps due to volatility, he will come to you and blame you for his losses.
You can also tell people that you believe that bitcoin is the best of investments currently available, yet at the same time, each person has responsibilities to figured out whether and/or how to invest and each person is responsible to decide the consequences of their actions whether they invest or the don't invest, it is their choice, and if they choose to ignore bitcoin, they can have fun staying poor. They have to figure out the benefits and the risk, and we are not obligated by their choices, even if we are saying that we believe bitcoin is amongst the best of investments, if not the best investment currently available.
There are no guarantees, and each person is responsible whether he gets into bitcoin or he chooses to completely ignore bitcoin, actions (and non-actions) have consequences. Even if I tell someone about bitcoin, I am not responsible for what they do, including that if there are risks, they have to research and figure that out. I have no obligation to warn them, even if I might mention that bitcoin could go to zero, but I might not say anything, also. Each person has to figure it out, whether we are talking on the web (and in these forums) or we are talking in person. I do not have additional obligations merely because I tell someone about bitcoin in person, and it could be the case that I had been doing them a favor by telling them about bitcoin, when they might not have had previously considered bitcoin... yet they still remain responsible for the consequences of their own actions in regards to the information that I presented, whether they act or not and whether they do further research or not.
So, do not force, you tell him about Bitcoin, and present him with the long-term potential profit potential of Bitcoin, as well as the risks. And then let him make the investment decision alone, remember that your responsibility is only to explain everything about Bitcoin to him and introduce him to the best Bitcoin investment strategy (DCA), and the rest of the investment decision will depend entirely on him. Overall, it is better to guide them properly rather than pressuring someone to buy Bitcoin, so that they can make their own decisions and be confident in investing.
We might be getting carried away with whatever this idea of "pressure" or "force" is, since in the end, the person receiving the information about bitcoin has to figure out matters for himself, so sure there could be some dangers if the person helping is doing too much of the work for the person.