Time to command is important - regardless of age.
If we all came to the Gulf with the aim of staying here till we retire then there wouldn't be any rush for the LHS. However the minority of us probably foresee themselves staying here until they retire and because of that, time to command is very much relevant, no matter how old you are.
When looking at this in the cold light of day, a command means more money and with that means being able to reach your financial goals sooner. This is of far more importance as an expat and especially so if you plan to move back home as soon as the kitty reaches a certain level.
Don't have a dig at the youngsters that may express an element of displeasure at having to wait a lot longer for a command. Maybe it is their aim to be mortgage free back at home by the time they are 40 (for example) and an extended spell in the RHS will make this harder to achieve.