You get to have control over your funds, transactions are cheap, and no one can know how much money you have (financial privacy), etc. Most people would understand these things.
Why isn't this being promoted? Why is there no crypto lobby?
Who would it be funded by? Bitcoin isn't like an ICO where a centralized team solicits funds for development and marketing. It's an open source project.
Also, transactions may not always be cheap. Without significant block weight increases, we should expect fees to rise considerably over time. I think this was intentional since fees must replace block subsidy to continue incentivizing miners to secure Bitcoin.