You don't expect anyone to trust anything that is just new to them and has not gotten much awareness or recognitions so for those who knew about Bitcoin earlier and didn't invest in it, we can't blame them completely but seeing the growth of Bitcoin since it's invention till now, it will be very bad if someone that is aware of how Bitcoin has developed till this stage and not invest in it even when they are not lacking any financial constraints.
If there are people who have known about Bitcoin for a long time and still don't invest in Bitcoin or have some Bitcoin as their investment asset, it is very strange to me because people who have not known Bitcoin for long sometimes dare to make decisions to invest in Bitcoin and try to keep buying it every time. Because people who already fully know about Bitcoin and its development history must have an understanding and trust in Bitcoin so it is a bit strange when such people do not want to have Bitcoin which has been proven to be good.
As we hope to see the price of Bitcoin reaching milestones in the upcoming years, the best decision anyone can take now is to buy and hodl whether you missed out in the past when you had the opportunity to buy at more lesser prices but it is not yet too late to start making accumulations even though we feel the price is high but making consistent accumulations will lead to having huge stash in our portfolio because even though the future of Bitcoin is not certain but we are already seeing some promising movements that will enable us have confidence in it's development.
The future of Bitcoin will still be good and those who are still hesitant to accumulate Bitcoin from now to increase the amount into their portfolio will always feel the price of Bitcoin is expensive because their confidence to buy and hold Bitcoin is still not too big so their mentality still needs to be sharpened a little to be able to increase their confidence in Bitcoin. And yes, it is never too late for those who want to start this from now because buying and holding Bitcoin will never be a loss as long as we do not immediately sell it when there is a price drop.