You are right because everything about Bitcoin investment is a personal decision, so is up to them to make a right decision. Honestly speaking Bitcoin investment is something to worry about because anybody that knows the value of Bitcoin wouldn't hesitate to invest and hold for future purposes. Though, a lot of people are registering today due to the fact that they were having a little fear in the early stage, so is pretty obvious that Bitcoin still have a brighter future ahead.
The future of Bitcoin has already been defined since it's not something that anyone can say they are not aware of. As long as the economy and finance market still exist, Bitcoin is bound to also exist and make more numbers. Those who have seen its true potential and are investing what they have will one day close the window on a good point and will not want to sell whatever volume they have, creating scarcity that way and increasing value.