The people I feel sorry for are those who have the financial capacity to invest heavily in Bitcoin but still have doubt over it's potential, I mean why would anyone even have doubts when they've seen Bitcoin set different ATH since it's creation to this point, well there would always be a doubting Thomas, those who would still find it difficult to believe even when they've seen prove that sometime is real. Nevertheless, if there's anyone who's willing to invest in Bitcoin but still have doubts, I put it to you that the best decision you'll make is to buy Bitcoin and Hodl, don't get discouraged by the drop in price cause I believe you should've known by now what volatility means.
It is not everyone that will invest in bitcoin and it is not a must for some that has money to invest in bitcoin. Bitcoin investment is an investment people will willing choose to invest. When I see people who have the resources I think it is not the time for them to invest because they haven't gotten the knowledge yet. Investing bitcoin is not about the money you have , if the interest and the knowledge is not there it will be impossible to invest in it. Investing is all about interest and knowledge that is why you can't blame people who are not Investing, let them get them get the interest and invest willingly.