I've never understood the sentiment that using a mouse is bad. I see blog posts all the time about how a programmer's job is more thinking than writing code and/or writing good programs is also about taking out just as much code as you put in. So if writing programs is a deliberate and methodical process that - I'd argue it's also slow. Why then is there antithesis that mice slow you down and you need keyboard shortcuts to be faster and more productive?
Maybe I'm just an old-schooler?