Ok, first, that association of a shaved head to a cancer patient is absolute bs! Shaved heads are very common and mainstream today. Just another trendy haircut.There is very little difference between a no guard buzzcut and razor shaved. About three days growth I would say. The big difference is the feel of a totally smooth head. It feels awesome and that smooth feel is why so many of us shave every day. Yes! Razor shaving is alot more work to maintain. I have a full head of hair, and I can shave it completely smooth in the shower in about 10 minutes. I think you should give it a try a couple of times to see if you really like the feel. If you don't like it, it only takes about 3 days to get back to the no guard length. Be prepared though, a razor shaved head is like nothing else!
You can shave your head on Friday evening and have soft visible stubble by Monday. That’s how I first shaved my head. Personally the difference between a shaved head and zero guard is pretty big in appearance especially if you have dark hair. Blond hair will not be so noticeable. But the first pass I took over my head with a razor…. I knew my appearance would be different. It’s the complete absence of hair. And as @reddog described, it’s not so much the change in appearance that will mesmerize you but the feel of a smooth shaved head. After a day’s growth, you will miss the smooth feel and wish that it lasted longer. And you will be tempted to shave again.Just take a long weekend and do the deed! It’s time.