I already have done it multiple times. I have spent my entire 20's basically with short hair or shaved. I have shaved my head just like 1 month and 2 weeks ago too. I love the way I look bald or with buzz cuts. I'm experimenting with growing it long again though for the first time in 8 years now that I'm 30.
Here is a recent picture of me...
https://imgur.com/a/fdRCB