Maybe it's a regional thing. I remember a brother giving a talk at a circuit assembly several years ago counselling the sister to wear pantyhose in field service - bare toes showed we didn't take the ministry seriously and didn't properly reflect the organization. I remember it quite well b/c all of the sisters I knew were soooo angry. Um...We lived in the south where the heat index routinely was over 100 degrees. Wearing pantyhose out in the sun for 2 hours = guaranteed heatstroke.
Latin congregations usually allow moustaches, caucasian ones - it can be frowned upon. I have NEVER heard of a brother given privileges who had facial hair - through 3 different countries where i served. I have seen some with beards or goatees but they were considered "rebellious" and "spiritually weak".