I meant that they couldn't discriminate on age with regards to those who are over 18. I realise that they must follow regulations & that these are set in stone.
But, by law, they also can't descriminate against an 18 year old, or a 45 year old simply because of their age.
That said, I do still that that some airlines would be unwilling to employ those who they may see as too young, and some may see 18 year olds as being 'too young'