system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Just Because You Feed and Love your Dogs Does Not Mean You Should Own a Dog

I have a family member who has two black labs. they have a small yard they are loved by the family and they are fed regularly. They almost never get exercise. They maybe get two walks a year and usually I'm the one who walks them. They are both 20 lb overweight easily. You can't walk one of the dogs (7year old) more than 1/4 mile with out it being in danger of collapsing. 

We've tried to get them to put the dogs on diet food. They'll buy them one bag and then just go straight back to the normal food. The people in the household are all able-bodied. They have three adult sons who live with them and none of them had take any initiative to exercise the dogs. 

I know that there are a lot of dogs who need homes and a home like this is a lot better than a shelter. That's not an excuse to be irresponsible with your pet's physical health.
gpt
>I know that there are a lot of dogs who need homes and a home like this is a lot better than a shelter. That's not an excuse to be irresponsible with your pet's physical health.

Then your problem isn't that they shouldn't have dogs, rather its that they should be taking better care of the dogs. It would be like a person having fat kids. Sure, they should take better care of their kids but that doesn't mean that people with fat kids shouldn't have  kids at all.