Most people just abandoned Bitcoin when the price is very very low. They don't even think that the price can surge and hit $100.000 because they think that is impossible. But then when the price slowly increase and hit many new ATH, they will start pay attention to Bitcoin although they still not trying to buy and hold Bitcoin.
They don't think to use Bitcoin as their investment because they are still prefer with their current investment such as gold and others. Or they don't want to open their minds to see the other opportunity to become rich in the future.
These are the same set of people that will tell you they are waiting for bitcoin price to come down low to buy bitcoin but they feel so comfortable to invest on shitcoins that has so much potentials to crash. If you don't have the real understanding of bitcoin everything will be used as reason for not being able to buy and invest. People who see bitcoin interesting to invest when the price is coming up, are only interested of it just because of greed, they want to make quick money from it but when bitcoin price is very low they do not bother to buy to invest. When the price of bitcoin goes up they will come up with a question if it is too late to invest in bitcoin.