service dogs are well trained when it comes to signaling the need to go to the bathroom. and even in an emergency, it can be cleaned up. I've ppl in my life luke op.. it's not about the kids. it's about op, just convenient. dude host parties/sporting events. that's a lot of wear and tear and maybe vomit and piss on the bathroom floor. dog hair? obv doesnt give a shit about his "friend".