[wraymond]

Advantages as fuel:

Fewer suicides in domestic garages, so lower council tax due to fewer clear-up services, and fewer police standing around who could be reassigned to do what they do best. Whatever that is.

More ballooning, leading to lower noise pollution.

Ancient Crafts rejuvenated for the basket weaving (see above) fraternity leading to revival of country industry resulting in contented peasantry.

Fewer airports in built up areas, all you need is a field and a big Bunsen burner, fuelled by, er, H + O2, both readily available and without planning permission needed for factories, and big lorries burning, er, diesel.

Resulting exhaust from the launch field burner could be used to irrigate the same field for organic crops, saving the planet.

Win win.