Not sure its relevant that the parents are submitting the pictures, the comments / opinions are still valid regardless.
Yes people probably are a little over concerned these days, but you could also say that in the past people were not concerned enough.
More to the point, why? Why would you want to send your photo into the paper. I’m always a bit “eh” about people that submit photos of their kids with their A level results, but at least they’ve achieved something. Why the hell would any parent think “oh, I’ve got a nice pic of the kids on their first school day, but instead of just printing that and putting it up at home, I’ll send it to the paper and get myself a copy on shitty newsprint paper that will get damp and horrible in a cupboard for years”
Even if the risk of some predator tracking the child down is 0.000005%, isn’t that risk too much to trade for the benefit of a shitty photo in the paper? The paper are doing it for their own reasons too, you liking and sharing the picture of the kid brings people to the site, they aren’t doing it to record some important moment in history
And in line with what someone upthread said, the sort of person that sends these photos to the paper / local paper Facebook site is usually the sort of person to have 500 Facebook friends, 80 they actually know, and so little privacy settings / awareness of what they are oversharing that they are probably more exposed than normal people.
So YABU,some people aren’t too paranoid, but some people who aren’t in the slightest paranoid are too stupid.