If people had known Bitcoin will surge this way almost fifty or more percent of world population would have become a millionaire.
You might as well imagine what opportunity might be missed in the next decade. It took over a decade and 2years for we to arrive at the price we've got today and it would certainly be better than we have it now in a few years which would define the opportunity that must have been missed this day.
It's the course of life, gained and missed opportunities. The excuses of yesterday won't be the excuses of today. There would be others generational excuses to replace those of previous years. Also, cryptocurrency doesn't make anyone millionaires but identifying opportunities and utilising it would.