Totally reasonable. This is my issue with DD spending time at my parents house, their dogs are snappy and agressive but they can't see the problem. The dogs even snap at ME. Their answer is always "they'd never actually hurt anyone, they're just being guard dogs". So no, my daughter doesn't go over there because they won't keep their dogs away from DD or even OUTSIDE while we visit. They are cranky because they completely trust their dogs but they don't recognise that it's DIFFERENT when it comes to guests who don't live there. They don't recognise that their dogs have limits and they aren't used to young children either.

I have a dog, I love dogs, I grew up with dogs and am comfortable with most dogs. My SIL has four dogs that I trust as much as I trust my own dog, my PIL also have a dog that I trust. I don't trust my sisters dog, but my sister understands that her dog, while gentle and well trained, is just not stranger friendly and she keeps her in her own area for the comfort of both us and the dog! There are just some cases where dog owners just need to be aware of the limits of their dogs and recognise when a situation might not be safe or comfortable for those involved. Sometimes it's just the way it is. In my eyes, that is part of being a responsible dog owner. I've seen all the little meme's like "My dog lives here, you're the guest" and things along those lines and that's all fine by me, my answer is just that in that case I won't be a guest in their house.