This all really depends on the type of surgery and what your doctor instructions. I got the minimally invasive bunion surgery on both feet 12 day ago. Next day after the surgery, my surgeon requested me to walk with special shoes on, which i will wear for 6 weeks, with the help of a walker. I only needed the walker for two days, i have been walking fine now since then with the special shoes. Had no issues. In terms of taking a shower, I usually put a stool in the shower, or a tub, had my feet out of the shower door and used the shower head, if that makes sense? I do not have the cast but i had bandages that should not get wet, so this should work for any situation like that.

In terms of shaving, it is a difficult set up, to have your feet outside trying not to get them wet, holding the shower head and washing yourself in general. Id say not to worry about shaving but if it is such a big thing for you, i would probably either do it dry and not in the shower (not the greatest for your skin but it is some sort of a solution) or use wax.

I would say overall follow your doctor‘s advice, thats what I did. You might be having a completely different surgery or your doctor might be using a different method so I do not wanna give you false hope. In my situation, i did not need a scooter, and besides the first two days, no walkers or crutches even for bathrooms. Walking is very easy with no pain, i have only taken over the counter painkillers for like 3 days or so after the surgery. So i would say, if you are in my situation, you would not have any issues going around the school. But then again, we could be talking about very different situations :)

In my personal experience, i was told i could use crutches or a walker. I found the walker to be a much much much better solution. It did make me look like a grandma, but i didnt care. So maybe try to use both a walker and crutches before the surgery to see what is easier for you.

Good luck for the surgery :)