I am thinking that if the bitcoin continue to go up to $100,000 and above. it will be expensive for the poor people to invest. It will be for only rich people. It will be better for bitcoin will not go so much high so that it will be affordable to everybody to invest and have profit.
I will like to read and learn for everyone here.
Oops, I think you are forgetting something that is fundamental and simple- a person has always the option of buying low amounts of bitcoin. It is not necessary that they must buy "1" BTC perse, but they can invest as low as 0.001 or 0.0001 BTCs depending on their respective capital.
Investing is for everyone even for the poor. As long as they can allocate their savings properly, anyone can invest into cryptocurrencies. While the capital gains may be relatively slower for people who invest low amounts, they always have the potential of earning large amounts of capital in the future if they re-invest their earnings.