How do you lead/manage people who are much older than you?

So I’m getting a promotion soon (yay!), moving up from just a line cook to sous-chef and I’ve only been with this company for a few months. Thing is that I’m still quite young (mid twenties) and will be the direct supervisor of some people a fair bit older than I am. Think 10-20 years older. It might just still be a bit of...