I guess it's not wrong, but, lol, I go back to DOS games today I used to play keyboard only and struggle so hard to find it comfortable. One of my favorites is Daggerfall which can be played with modern WASD + mouse almost perfectly despite its age. That game was so ahead of its time. I probably put 1000 hours into it back in the day.
A lot of adventure games really need the mouse though. Only some very early ones can be played keyboard only. No mouse would be missing a lot.