It's your choice whether to have pets in the house or not, obviously. But your post is unclear -- do you not have them in the house simply because they make a mess, or is it because you are allergic to them and/or have an asthmatic response to them?
I've had them in the house in the past -- but now, for various reasons unrelated to allergies or anything like that, having them in the house just grosses me out. I don't even like to go in someone's home who keeps animals inside. I know, I'm weird. I just don't like the thought of animal hair floating around inside, landing on the bed, landing in food, etc.
I'm not a neat freak, I'm not particularly organized or anything like that - it just doesn't seem very sanitary to me. I really do have a good reason for this ... ick factor, I guess you'd call it -- I have relatives who go to the other extreme, and I think that's what has done it to me. Birds or fish inside don't bother me, but cats/dogs inside ...