Children age- most wear and tear?

[Dana R.]

I know families are a protected class so you can't discriminate against a family and not rent to them because they have kids.

Let's say you had two families that were identical in every way except the age of their children, and you were going to rent to one of those families. Which one would you choose?

I'm sure there was a good reason why landlords were wary of renting to families with kids because they were concerned about the wear and tear a kid would create.

But, is there a specific age for kids where they tend to create the most wear and tear on a place?