My thoughts on this are that if you haven't marked the options about not suitable for children <2 & 2-12 then you should expect accidents. Personally I don't want children at my property and I say it's not suitable but that doesn't stop people with kids requesting a stay, I either have to accept or decline. Declining means I take a hit on the decline meter, and rankings, or accept and hope for the best. I have the typical mattress protector under the sheets but also a waterproof thin cover over the mattress just in case. Good luck to you.