I'm mixed. I always wanted a dog as an adult because I grew up with dogs. But, maybe because it was a different time, the dogs didn't run our lives. Serially, they lived in our backyard. They had access to a dog house in the garage. And we gave them food and played with them. I was also a kid so no idea what my parents went through but I certainly didn't see them fretting over the dog and we rarely if ever took them for a walk.
But now I see any of my friend and family that have dogs re-arrange their lives around them. One friend will never stay out more than 2 hours because "gotta get back to the dogs". So, dinner and a movie is out since that would be more than 2 hours. A family member is similar, gotta get home for the dogs. This family member would also not be ok to check them into a dog hotel for a longer family vacation so we haven't had one in 10 years.
So, seeing examples like these and others, I haven't been able to convince myself to do it. I kept waiting until I had a house with a yard like I grew up in but that never happened.