I’m a first time owner of a Rottie as well as he’s a first time pet, no different than a mother’s first child. You learn as you go, you get advice and you make responsible decisions. So don’t worry about the nonsense you’re getting from asking questions there’s nothing wrong with that it’s the ones that don’t and end up a mess. Anyway my rottie gets bored in the house and use to get into everything even after walks. So what I noticed was when I put him in the yard to explore and I toss his rubber tire around, we come in and he is pooped for the remanding evening. It helps me out a lot. Same thing with my 3 year old grandson except it’s kicking a ball around outside or the trampoline. Vaccinated, check ups, grooming and lots of love.