The amount of ratting a lad does will determine when they are entered .Mine tag along at about 6 months but that’s not entering is it .Entering to me is taking the youngster out on its own to see if it’s ready to tackle something alone and in it’s own environment .Ragging a corpse is not entering ,killing anything with the pack is not entering ,entered implies that terrier is ready to join the fray as a ratter in its own right and the only way that’s proven is to take the youngster on its own at the appropriate age to let it work unaided .Same with digging .I like a dog to be independent wher