Now we only need,
1) The government to fund the restructuring in conventional infrastructure ("Gas Stations") to support fuel cells.
2) The current energy industries to move and give space for fuel cells.
3) The fuel cells cars to drop their price competitive enough for the customers to want to buy them.
4) The general mechanic shops to learn how to repair an maintain fuel cell subsystems.
5) Redirect and re-educate workforce from previous energy industries into other livelihoods.
6) Find new livelihoods for certain middle east countries, so that they don't become another Venezuela. (And considering how the surrounding areas tend to act up, this might be the most extremely important factor.)
(I do support moving away from stuffs that might cause human civilization to fade in 2050, but there are reasons why people are always hard to budge when it comes to changes.
For example: In 2017, the were roughly 34.3 million cars registered and on-road in Canada. Of those 45950 were Electric/Hybrid, and that number did not increase much since then. For US its 253million/1million in 2018. China was doing slightly better at 340million/3million. All of the things mentioned above and more contributed to this, as we just pretty much dumped them into the market as high price status symbol and not future solutions. Fuel cell? What fuel cell?
Unlike Norway who offered so much benefits to buy FEV cars that they now sell more FEVs annually than gas-powered, we never made the idea attractive, or even competitive, to the general populace.
I'd be more interested in ways to get people to not go against spending the money and effort for future right now than any techs.)