I'm a Dogs Deserve Better Representative. I am STRONGLY against chaining 24/7. In 90% of cases when dogs are chained, their owners just do NOT take them off the leash to properly train them, socialize them, or to give them exercise. And a small dog house might be considered shelter to some, but not me personally. A small shed and at least some form of heating would be adequate, however.
And then, to get into that chaining is a leading factor in viciousness in dogs, as well as dog bites.
I've never yet met a person that chains their dog but still cares for it adequately. And there are a lot of people that chain around here. I have, however, met some dogs that are allowed to be free in a person's own yard, never chained but never indoors, that are cared for adequately. And there is a boy a block down from my mom's house that has two outdoor beagles kept in a small chainlink kennel with just a dog house. I'd prefer that they have MUCH better shelter, considering the weather we can have here, but that boy walks those dogs every single day. More than I can say for most people that shove dogs outside and just forget about them.
It is very rare to come across a person that chains their dog and it lives outdoors that actually truly cares for their dog.
With all that said, I do not support the push of anti-chaining laws, but rather stricter laws against those that neglect chained dogs, such as being out in freezing whether with only a dog house, not fed well enough, or not properly groomed, etc.