Unless he is covered in fox poos
:lol:
Mine are welcome on furniture and really -- why get a lapdog and couch fiend breed of dog like a cavalier if you aren't going to enjoy that lovely image of beautiful cavaliers draped on a sofa or armchair? I love seeing mine at rest this way!
However, it isn't that hard to train a dog to wait until asked to go onto furniture, but the problem is that most people expect the dog to know to do this in the first place (of course they don't), or want the dog to be able to do this after a day of some half-attempts at training.
Training always takes time and commitment, and daily practice and consistency. An issue is that as most people spend their entire dog's puppyhood encouraging many behaviours that are cute in a youngster but find are not so cute in an adult (barking, wrestling, playing rough, climbing on furniture, jumping up, etc) they tend to have a much greater challenge in then trying to break habits they once ignored/allowed/encouraged for a very long time. So that tends to slow training and frustrate people too. And if all family members aren't dong the same training approach and applying the same rules, the pup/dog will constantly seem to backslide but that is only because it never is taught, consistently, what it needs to do. Kids are often the weakest link here, but it can be a spouse!
Hence I will again enthusiatically recommend any and every puppy (and dog!) owner to download the free copy of Dr Ian Dunbar's book 'After you get your Puppy', on
www.dogstardaily.com. Training consistently and kindly from the day you get your puppy/dog is what produces the adult dog you want. Some behaviours will be very hard to break once they've been allowed for months and months (but it is never too late to start! It is just not as easy).
Also management is better than just wishing a problem weren't there-- if you don't want a dog up on sofas, for example, simply babygate off that room or close the door. Limiting access is far easier than training and can be done in conjunction with training.