Step-child - why do my friends do this?

[ArnoldBee]

Just had a message from one of my nosey friends questioning/informing me of the whereabouts of my step-child. Step-child is in the care of their mother and my friend has felt the need to ask me where step-child is as they cannot see them with their mother at a local event. I've also had messages from other friends when step-child and/or their mother has been out and about. If it's not our time we don't care (In the nicest possible way) so why do my friends feel the need to report back?

Is there any chance there is a child protection type thing going on?

My brother once took one of my DC to a local park and one of my friends sent me a text message about this and another told me the next day that they'd seen them at the park and had asked my DC who they were with! I found it amusing because obviously they were fine but if it had been a strange man it would have been very good that these friends had acted that way.

i would start updating them on their sisters movements. see what they say back. if they point it out as weird explain its what they do to you

Step-child has an extended family which is well known to my friends so could have been with any of them this evening while their mother was out with their mother/sister and other child. I just might have to get feisty!