I agree that we need to keep learning about bitcoin as much as we can but for the most part the average user of the future does not really need to worry too much about it as long as they have the very basics ingrained on their mind, another important concept for people to know is that they understand that there is no bank that has their back, if they lose their coins for the most part they are on their own which is why it is critical to learn to secure your coins properly.
The question how to keep bitcoin private keys safe is very important and, at the same time, highly challenging concept for average people to comprehend. Even those people who consider themselves security experts sometimes fail at storing bitcoin completely secure. Having to be responsible for own money scares people, self-custody is definitely not for everyone. However, before we dive into complexity of technical stuff, there is another interesting question that needs to be answered - why. Why bitcoin exists? Why would ordinary people keep it safe in the first place? From my point of view, people first should learn "ideological" part of cryptocurrency space in order to start valuing bitcoin. When they know why bitcoin has value, it becomes easier for them to store it properly.