As was mentioned, Kegels do not go with cath tubes, but the day the cath comes out, have at it.
There is no room to snipe at anyone - wife, nurses, the whole crew are there to help. I was happy to have anyone around who cared if I lived or died (am single, no kids), so would not have complained lest I drove off the last person who might pretend to care.
I was on a limited diet the morning after surgery, but by lunch was on a regular meal tray. The doc's philosophy was eat healthy, and the rest will follow in good time. It did, and before I left the hospital (mind you I was kept for 4 nights due to pain & really ugly nausea and balance problems due to a reaction to drugs used, never did find out exactly which were the problem).
And Expectations - leave those in the book. Heal first.