Reserved a kitten a couple of weeks ago , paid small deposit.
Have 3 children - teen, almost 4 year old and 1 year old . I suppose I was thinking along the lines of those that have babies close together -when your in the thick of it (with preschooler/baby) what is another mouth to feed bum/litter tray to clean , I'm currently a sahm so I'm in a lot , we also only wanted one kitten for financial reasons ( food , insurance , spaying , potential holiday cat care etc ) and space (litter tray, bed) and thought that our 3 year old would have the endless energy needed to play with kitten in place of a sibling as I have read about kittens being easier in pairs , we have been around family cats and spend most days after nursery looking for neighbourhood cats and also thought just generally nice for them to have a family pet to grow up with.
A few days ago I was looking up kitten threads on Mumsnet trying to get best tips and advice for the new arrival but I came across a lot of kitten regret posts and countless stories of cats that destroy houses , pee and poo on beds/anything left on the floor and vomit everywhere , I wouldn't even say I'm particularly house proud but I do draw the line at my entire home being used as a cat toilet.
What do I do ? We are due to pick kitten up in a few days and have been going over and over this in my head , I would feel awful to change my mind this close to collection and for my children who I know would adore the kitten but if I can't accept the above is it best that we don't go ahead ? 

Thanks for any input