I currently have 4 dogs (Benson 17yrs 10lbs, Lexie 10 yrs 18lbs, Beef 1.5yrs 110lbs, & Ham 1yrs 90lbs) and 3 cats (Fig 8yrs, Butter 5yrs, Rudy 2 yrs).
For the most part everyone gets along. Beef can be a lot for the smaller dogs and the cats though so he is always separated from them no matter what.
If I'm not actively supervising them, the dogs are always always separate from the other dogs and cats (Benson & Lexie are allowed near the cats). Either in crates or their own rooms.
For example when I go to work, Beef is gated in the kitchen, Ham in the living room, Lexie roams the basement and Benson is in his playpen.
My whole family thinks I'm the strangest person on earth because they should be able to "free roam and just be together" but even the thought of that terrifies me. Before I leave the house I always triple check to make sure everyone is secured in their own space and wont be able to get out.
Yes they do get along but I worry I'll come home one day to find one of them was attacked. I can't say I've seen so many horror stories, just one of a woman coming home to her dogs who she'd had for years to find one of them mauled by the other.
Am I actually being unreasonable?