You have to admire his accurate aim, but…
Peeing to a dog, especially a male dog, is so much more than just emptying its bladder.
It’s all about sniffing and interpreting the sent of other dogs and staking out one’s territory and a whole lot things we humans simply have no idea about, depriving a dog of this important part of his natural behaviour is not something I would do to my dog.
Besides that, to me taking long walks with my dog is one of the great pleasures of having a dog.
But to each his own…
The following text was taken from the video:
Having a dog is great fun but keeping a well trained dog doubles the pleasure. I trained my dog to pee in a cup. This will save me a lot of time walking outdoors.