Your wife has to stay home with your child because of the things you are doing?
If you want equal custody, you would certainly need to make more sacrifices because the custody would not work around your schedule and hobbies
Well, somebody has to watch our daughter during those times, just as when she has something to do, I (or someone) has to be available.
The things I am doing those evenings are endeavors she supports (education and exercise).
These are the things most of our communication centers around - when one or the other has something going on, so the other knows when they'll need to be available at home.