Running a pack of hounds is an expensive business - the feed, running the knacker wagon, fuel for the vehicles, staff, horses, uniform, wages...the money has to come from somewhere. Hunt subscriptions provide major income, which means we are a free pest control service and a low cost knacker facility for fallen stock.
The kit worn on the hunting field, generally has a reason behind it. Scarlet coats are easy to see, that is why staff and masters wear them (so the field know who to follow, although this may also be extended to subscribers who have proved themselves useful. We show respect to the landowner by wearing smart breeches and a riding coat - yes we could wear jeans, tatty fleeces and pink jockey skull caps, but we probably wouldn't get invited back!
Would you suggest that the Grenadier guards swapped their red tunics and bear skins for something a bit less traditional??