In my untrained mind, I struggle with hydrogen. Zeppelin is the first thing that comes to mind. h2 is a storage challenge. It needs more compression than regular fuel. Don’t fancy hearing about two mini zeppelins crashing into each other and closing the motorways.
Also blue H2 provides another challenge on carbon storage.
As Robster has already explained, using a Zeppelin analogy is completely wrong.
But the major issue with H2 is that there are too many vested interests in forcing us down the blue hydrogen route. The big fossil fuel companies are desparate to keep pumping methane out of the ground, and blue hydrogen is their smoke-and-mirrors way of pretending it's good for the planet. I get the impression that some politicians wanting to claim green credentials are falling for it, and there's a danger that embracing blue hydrogen could become government policy.
I'm a big fan of going down the H2 route for long haul transport (and possibly home heating), but only if it's genuine green hydrogen generated by electrolysis using renewable electricity.
Problem is that it requires a heck of a lot of electricity to produce.