Paul -- I brought the ramp because of Thomas's age. I also use for little pups who can't jump up to the back of a Tahoe. Poor boy had the desire and even tried to jump in before I could lead him up the ramp, but just not doable. I normally have a kennel in the back, and if the pup is big enough say "load up" and they jump into the kennel. But it is stored away right now because Knight has gone on to his finishing home. I think a crate is great for a puppy and young dog because they can be excitable. I figured that would not be the case with Thomas because : (1) he had been a working guide for years and knew how to ride in a car; and (2) he is a bit on the older side and calm, and I really wanted him to be comfortable and have the room he wanted. GEB's wish is that all dogs and pups on program are crated or restrained or in the well of the passenger seat for the safety of the dog (first because of a potential accident which could throw the dg around) and safety of driver. Thomas just laid down on the blanket the whole way and was as good as gold and never moved.
Yorkdude -- the dog pretty much determines when he or she retires. Some retire very early. One recently raised in our region only worked for about 6 months and then developed a fear of traffic and sidewalks and so could not continued and was retired That sometimes happens at different times in a working dogs life. And obviously, if something happens to the dog's health and a vet says it should be retired, it is retired. But, for most, sometime between 8 and 10 years old, their handlers will begin to notice that the dog seems to be struggling or faltering at things which use to be basic -- they miss stopping at curbs, they miss targeting steps, they seem to not be able to respond to commands as quickly. They usually then discuss and consult with GEB to see if it could just be the need for a little refresher course (if dog is younger). If dog is 9 years old, they pretty much know they are signalling that they need to retire.