I think we will be able to do some nice stuff with fuel cells.
Essentially building electric cars. Electric cars have some efficiency
advantages, and some inefficiencies too.

You start with some sort of fuel, hydro, nuclear, coal or oil, then
concert it to electricity, then use it to produce hydrogen, then store
the hydrogen in tanks for use in fuel cells. Next you fill the fuel
cells and use the electricity from the fuel cells to power electrical
motors.

At each step of the way you have some losses. Electrical plants may be
60 percent efficient. Conversion of the electricity from fuel cells into
the proper current and voltage needed for an electric motor is no more
than 90 percent efficient. Electrical motors are no more than 70 percent
efficient. Storage and transportation of fuel is another loss. So now we
are down to less than 38% efficiency just with those numbers. There are
costs with the losses.

So there are some things to overcome, but it can be done.

If I have a gas station and you require me to sell alternative fuels,
you better give me a subsidy or somehow make the sale of these products
financially attractive to me or I am out of there. No way am I selling
an unprofitable fuel. I might as well set up a business to give away
money. perhaps you can talk some people into doing that, but good luck.
The gas stations are not that profitable anyway, forcing them to have
higher infrastructure costs without adding to the profits would be
impractical.

Build a market for the fuels, people will sell them.

My idea for improving the situation is more practical than any of yours,
but I don't have the time to go into it right now. Besides that the
venue is not right. Too much contention here for serious discussion.
I'll give you a hint. None of you are close.

Chevy is introducing 100 hydro cars in NY metro area this fall. There
are 6 cities in the US who have ordered and purchased hydro city buses,
a couple in FLA.
There are also several (72?) H2 fueling stations in the US and more are
planned to open soon. still hard to get a price on them though..The
hybrids range around 21,000 dollars!