It would be good to have at least one experience of hypoxia at some stage during training - cost and logistics no doubt being the determining factor in this case.
Although a good number of pilots have no doubt seen the videos of aircrew in a chamber, it cannot bring home the reality as AMEandPPL states - and he should know!
I know that when I did my initial type rating on the B737 it was impressed on us that we should check the position of the oxygen selector on the first flight of a duty as a part of the 'rainbow' check - and over the years I always did this check thoroughly - and found on at least one occasion that the selector was OFF.
It's so sad when such a simple check results in a tragedy - but what about the other indications along the way during the course of the flight?! It's hard to believe that ALL the warnings and indications were missed during standard operations - but they obviously were.
FOK