Rethink airbags? Maybe better rubber feet on the Titanic's deckchairs would have helped?

Anyone owning a private car will kill far more children in future generations, stamped under its resource footprint, than they could possibly manage by shoving kids into it during heatwaves. There is nothing an individual can do that will cause more catastrophic destruction of the planet (and nothing they could do to support mass murder right now in defence of monopolies on resources like oil, aluminium and battery metals).