When I took my toggs to a male last year the males' owner looked in horror at my girls beards, hers goats were trimmed and tidy, mine don't like them being trimmed, but she said they had to be for shows. I suppose it does give them the more ladylike shape we should look for?
Thinking about what my friend explained about Exmoor pony points, I wonder if a goats beard is to drain water away from their nose and mouth, though as they don't go out in rain not sure if that's relevant?