I can guarantee you that neither Einstein nor Steve Jobs ever worried about why so many other people have conventional thinking. Just be curious if you want. Daydream if you want. You are an adult, that means you can continue playing even if it is dinner time if that’s what you want. You might of course have goals that work better with specific actions, but goalless play is surely something you, as an adult, can make time for.

And most thoughts are not thought not because of crushing conventionality but because the space of possible thoughts is so large and complex and not all thoughts are useful. Having some dreamers around to generate less constrained ideas is fine, but having a few practical folks around to make the ideas more conventional is also useful.

In general, if you see a segment of society doing something that makes no sense to you, it is your understanding that is lacking; it is usually not that their apparent irrational thoughts serve no function in society.