Er for quality of life now?! Maybe! To see my niece smile and actually be part of this world is the most incredable thing and I'm Aspergers myself and don't get facial expressions bit her smile is the most bloody beautiful thing in the world.
My sister well it allows her to function to fulfil her immense protential she's at Oxford able to study and probably add more to this world, but without her dog then at best she'd be recluse at worse not here or in hospital.
I seriously suggest you read up on the value of companion dogs!
Ok actually another value to pets a neurotypical relative of mine's best friend died very suddenly, and I mean best friend inseparable, the grief showed up very large issues in his marriage that then collapsed dramatically, his dog got all the tears and the how did we end up here's while he put on a brave face for his children the dog stayed with his ex and the children it sadly passed while he was out of the country working a short time after. Does he regret it, no because the reality is the dog imporoved his and his children's lives at the time!
Right so we shouldn't be dependant on human companions either then because my friend died when he was 33, leaving his 31 year old partner, my mothers first boyfriend died at 18 she's now 60. My best friend as a child died when we were 12. All of them had compaions that out lived them by a long way! So erm no different to out living a dog actually worse than out living a dog! Oh and all three deaths were natral causes! No illness.
As for the shitting in parks that's the fucking owners faults and there are laws and fines that make it illegal not to clean up but some people are going to ignore them like they do every other bloody law! Barking most dogs don't bark insessently like I said earlier those that bark like that are often in distress themselves because their owners are neglecting them! Again a human causimg the problem not the dog!