Yes, that was one of his election pledges wasn't it? I'm amazed that he has any politically credibility whatsoever after reneging on that.
The Tories actually proposed this many years ago, and it struck me as a very sensible and progressive thing to do. I suppose I'm politically a bit of a utilitarian- the greatest happiness for the greatest number. A family's annual holiday in the sun means a lot more to them than some rich person's fifth such trip that year.
Obviously the idea never made it anywhere near being a manifesto pledge, let alone a law.
France have the right idea with their switch to trains for all travel under two hours. But then again they have a functioning rail system, not a privatised mess like us.