I don't mind stepping into a parental role sometimes.
My kids are grown, and sometimes you need a mom around.
When you are shopping with a crying baby and a toddler throwing a tantrum.
When you need to change a diaper and there's no place to do it.
When you are working extra hours and your kid needs to be somewhere.
I was what the Army calls a "geographical single parent" for WAY too many years to not appreciate all the many, MANY people who stepped in and helped me.
So I am happy when I can return the favor.