You need to understand that some people just made up their mind recently and started their accumulation journey and not everybody that started buying bitcoin now is a trader and is aiming for quick profit. Some people are still starting their accumulation journey with the right mindset and on a long-term plan even now and you would agree with me that it is not too late since bitcoin still got its potentials.

Advising somebody to do something right still needs the person to be convinced within himself that he is moving in the right direction, it is very possible that those you advised then were not convinced even after their research and only now that the price of bitcoin appreciated did they reach a conclusion that they would invest and they are still on the right track, although their investment would not be as profitable as those who invested in $50k or below, but they would still be better off than those who would join at $100k or more and if they remain consistent with their accumulation journey, they are still going to secure their financial future just like everybody else that has made this right decision to invest in bitcoin