You are entitled to your opinion - not everyone has the biological instinct to propagate the species, and the contributions of many offspring can be argued.
Perhaps I misunderstood the intent of your post? I thought you wanted to better understand why people own dogs and if the investment was worthwhile. In retrospect it seems you really didn't want insight, but rather an opportunity to find folks that felt the same way and to debate and belittle those who feel differently.
My point is that I dont' call people odd because they hover over every bowel movement and accomplishment of their children. To each their own. If we're talking history, the way parents raise children today obsessive. It used to be that parents had children to help farm, to take care of siblings, to carry on the family name and business. Somewhere along the way they've turned into worry wart helicopter parents that want to be friends with their kids, and give them an easier life. I used to get kicked out of the house every summer day by 8 am and be told to ride your bike, play do whatever - see you when the street lights come on. I had to be out of bed by 8am even on weekends and summers, now I have neighbors that ask me not to trim my hedges until after 9 am because their teenage son is sleeping. Today parents have trackers on their kid's phones and have check in texts every hour. They arrange for "play dates" and accompany the children to make sure all is ok. I have a colleague that was complaining that his daughter was "bored" already after being out of college for 2 weeks and when I asked if she was working he said, "well she did for a week early on and earned some money". Things evolve.
You have your interests and things you choose to invest in that I do not. Your last sentence in the OP, while perhaps intending to stir up discussion is pretty condescending.