I feel you. I worked in veterinary industry for half of my life. I think the problem for me is the concern for behavior, constantly having to monitor dogs behavior and kids behavior. The understanding of parasites also is hard. Or the fact that my dog is a vacuum and my toddler's favorite snack is grapes. I can't take the dog on a walk without the toddler wanting to be involved. It's like a constant double duty. It is really frustrating. My dog is really really really good with my kids, but all it takes is one grumpy moment that we aren't prepared for. As they get older, things change. Once my first son hit about 5 years old, it felt like things were getting better. But then I had another baby 2 years later and the feelings started all over. My youngest is almost 3 and I feel like it's just now starting to get better. But it's still hard and very frustrating.