Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: I was at a coffee shop after work the other day. When I entered I noticed a guy, white, probably late 20s, scrawny, looked like the kind of person who works in IT and saves his money to fly to Thailand twice a year for "sightseeing" with a young Asian girl, she looked like 12 to 14 or so to me, slim, small body, looked like my niece who is 12, and a young looking face as well.

Didn't really think too much of it and I sat down a bit away from them, facing the same direction as the girl so I couldn't really see her perfectly. But I did notice that the guy seemed to do her like gently stroking her cheek and even leaning over to give her a kiss (not on the cheek). It made me sick and since I had recently read about underaged sex traffic victims from Asian countries I wondered whether this might be one of those scenarios.

So outside I decided to call the police and told them that I had seen an adult man making out with a young girl here. I waited across the street until they arrived. They got inside and since there were only few people inside they found them quickly. I could see them through the glass window. They talked to them shortly, then the girl talked, then she showed them what I presume was her ID, the policemen seemed somewhat apologetic and left. Afterwards it looked to me like the guy was consoling her.

I concluded that she probably must have been older and I misjudged her age. I debated whether I should go inside to apologize but I didn't really want to face them so I left.

I was acting out of genuine worry for the girl though. So am I wrong here? Does that make me an asshole? 

calling the police on an adult man and a presumably young girl