Under the House Rules settings, if a host selects NO to either or both of the settings concerning suitabilty for children (one for ages 2-12 and the other for ages 0-2), that clearly indicates that the property is NOT suitable for those ages. However, on the listing page itself, which guests see, the rule reads "MAY not be suitable..." (emphasis mine). This is 100% incorrect and is highly misleading.
The fix for this is incredibly simple, not involving the underlying code logic, but some simple text edits. Simply delete the word "May", change the first letter of "not" to uppercase, and delete the word "be". Done! Of course, I suppose the identical fix might have to be made in three separate locations, which is still not all that hard.
By the way, fellow hosts, if this affects your listing, PLEASE click the Thumbs-Up button. If this item doesn't receive the required number of "votes", then it will be "archived" by AirBnB. ("Archived" means it will be removed from here and ignored.)