Certainly all these factors have influence.
In my mind the biggest reason in the awareness among people. This had helped easing people’s fear.
A lot of different channel are making it easy to invest in crypto. As they are easily available now and people have started seeing them in day to day life so people are more comfortable with crypto these days. Revolut is one example, they opened crypto market and adding more and more currencies. People trust these channels and when that start providing crypto currencies then people start trusting crypto as well.