Promotions
Generally, we give raises based on not their age, but their performance. We want people to earn it.
Occasionally, people will leave the company which may cause other team members to feel somber. Other people leaving the company sucks, but it shouldn't be an excuse to be unproductive.
After all, removing unproductive people is a good thing for them and for us-- since continuing to reward unproductive behavior injures the company and sends the wrong message.
Strive to move towards a culture that rewards performance, instead of encouraging people to find ways to make excuses for raises, as opposed to actually showing they increase their output and skill.