Star players age?

Is this a bad idea? My friend and I want to make all the star players younger so we used their ages from the 2001-2002 season for example

Dirk 23
Kobe 23
T Mac 22
Shaq 30
Duncan 25
KG 25
AI 26
Kidd 28
Nash 27

etc:

What do you guys think?

It depends what you're trying to achieve. If you're trying to keep them from retiring earlier, then it's a sound method of achieving that. If realism is your aim then I'd say it isn't the best approach.