First off, congrats and welcome to the officiating ranks. Around here, you will find many who love this job deeply and should be excited to welcome a young new official into any local association you might become a part of.
My recommendation is that as a new official, I would tell you dont worry about it...at all.
Across the country, there is a massive shortage of officials, so no one is going to tell you that you cant work on a HS field with a beard.
The nationwide statistics tell us that less than 2 out of 10 new officials will complete their 3rd year (for a variety of reasons).
If you fall in love with officiating, like many here have, then unfortunately you will need to conform to what a supervisor wants whenever you begin to explore your options of advancing to collegiate ranks. Like players, only about 1% of HS officials will work the college game...so, before you go upsetting your wife or your own personal brand/style, I would encourage you to spend a few seasons to decide if this is something you want to turn into a life-long pursuit.