In my opinion, the strategy that could help people adopt blockchain technology and crypto trading would be making an effort to educate the masses about this technology. People will only adopt something that they have a full understanding of. Campaigns and advertising the technology on social media platforms where most people are participants would go a huge mile in helping the adoption of crypto.
Educating the masses will take a lot of efforts you're left with one option which is to make the masses interested into learning cryptocurrency if you are really trying to make people adopt the use of cryptocurrencies. However I do have different opinon, the only thing that stopping crypto from mass adoption is the lack of regulation. Although cryptocurrencies is all about freedom but old people tend to be afraid of something that are not officially recognized by the government or the country they resides in.
The one point you have mentioned is worth mentioning which is "make the masses interested into learning cryptocurrency" that is one of the aspecs we focus the most these days. We asked this question to our selves and said how can we make an average person be interested in crypto and our first initiative was an interactive
crypto quiz which you can see here
https://www.tokentuber.com/quiz, we already created quite buzz with it, seems we are getting people interested.