Otterman: Sorry should have posted ' Laws are also changed regularly to keep up with a changing society' along with 'Contracts/T's and C's re-negotiated every year'.
It would seem nothing in life is guaranteed.
......best laid plans of mice and men and all that..................
It can't be nice for pilots like you who have probably been with an airline since leaving school and are now watching the 'goal posts' being shifted. Your argument is valid and understandable as opposed to LHR Rain who just wants his piece of 'command pie'.
Aviation is a second career for me and as such I have a different view.