Since I did this for myself, I didn't make anyone aware until I did the deed--buzzing and shaving. I needed to do it, not them. As one SBG once pointed out, how many wives or significant others as us about a chance in makeup, hair styles, whatever--very few, certainly not mine.
If all this "preparation" works for you, fine, but please remember the main beneficiary will be the guy in the mirror, and no one else. You will get the rush, you will know that you look better, stronger and younger smooth. They are only observers. It's for you. And when you're happy they should be happy.