Yo, bro, “family friendly” doesn’t mean your brood can disturb other patrons. There must be more to their side of the story.
Why would a restaurant and restaurant manager involve ‘police’ if it is simply asking them to leave? Esp. like this story that got into the ‘news’.
Th only reasons that I can think of that would cause the restaurant to even consider getting the police involved:
1. Upon being asked to leave, they refused.
2. Upon being asked to leave, they decided not to pay for their meal. (Doubtful that they'd call for that reason, but possible.)
The article never states any reason for the restaurant calling the police.