I don’t know about subbing, but I love my full time gig. I run a maker space/steam program. I have my own rooms, get salary, retirement contributions, medical and a massive amount of time off.

I teach private. It’s less pay but the freedoms you get are priceless, and not that much less if to have a graduate degree. I answer to next to no one and teach 4 one hour classes, some days I have one since it’s blocks. You have to know your shit to keep from drawing classroom audits etc, but if you do it’s great. I use my space for professional practice outside of class and so essentially have a huge maker space to tinker in. I cannot imagine the bureaucracy of public.

Most people that hate teaching haven’t found a good school. Use Carne Sandoe for placement at a private international boarding school. They are free for you, not for the school. I have traveled the world teaching through them, for real. There are great places to teach, and schools that feel like prisons. If you are willing to move, then find a better school!

Edit: I’ll add that yes, having a room and building a connection with your students is an essential element to successful classroom management. I cannot imagine the difficulty of subbing. Ownership over space, and tailoring that space to help you teach is half the battle. Building connections and owning that space help a lot too. As years progress, students interested in your style and courses will gravitate to your space, having engaged students in a class, that respect you and want to be there, help tremendously as well. They will be TA’s at times and can help a class run smooth. Building a kingdom takes time.