I have a dog at med school. Sometimes it's really nice to have her and sometimes it's a pain in the butt. I decided to bring her b/c she is old (12, which is old for an 90 pound dog), I've had her since I was in elementary school, and I didn't want to miss her remaining years. (Which I realize is morbid, but, she would be 15 when I graduate med school, so not likely).
But, it does take time. Days we have class + lab she goes to doggie daycare. I have to study at home for the most part, b/c it's not fair to her to leave her at home alone all day.
That being said, it's great to have her to cuddle with, and taking her for her walk is a great way to relax. She's good company and it's really nice to come home and have someone be sooooo excited to see you. 😍