I just got one two weeks ago. He has changed my life.
I thought I was too cold and cynical and busy to care for a less intelligent being than me at this stage of life.
But I have always wanted to bond with a dog. I never got the chance to.
You can spend years ruminating about if it will work for you, but at some point, you just have to decide if you want a pet. If you do, and if you're willing to put in the time and care and money, and if you do want a pet, commit to it and just do it. Of course, don't do it if you legitimately can't care for its needs, but not all dogs need lots of attention. I can leave mine at home all day and he's very satisfied to lie in bed and be a lap dog.
My dog loves me and my partner more than anyone in the world, and that's an amazing feeling. Picking up shit and feeding him and taking him to the vet is not even a chore because he's added so much joy to my life. And now I sound like a parent, something I never thought I would say.
Getting this dog has done wonders for my mental health too, and although I rescued him from a shelter, he kinda rescued me too.
TBH he hasn't changed my freedom at all. I brush my teeth twice a day, my dog eats and goes potty twice a day. It's a simple routine. Otherwise, he just does what I do and hangs out at home until we come home and play with him and pet him.