Here's why:
* Limited hydrogen fueling stations: Unlike gasoline stations, which are ubiquitous, hydrogen refueling stations are very scarce. This makes it difficult for people to fill up their fuel cell cars, limiting their range and practicality.
* High cost of hydrogen: The production and distribution of hydrogen is currently expensive, making the cost of fueling a fuel cell car significantly higher than gasoline.
* Limited range: While fuel cell cars can have decent range, they often fall short of the range offered by comparable electric vehicles with large battery packs.
While there is ongoing research and development to address these issues, the lack of widespread infrastructure remains a significant barrier to the adoption of fuel cell cars.