Let's hope together lol.
Yeah... I would post some pictures of our holiday small trips soon. Not all of them since here we are not allowed to just take picture of other people and post it without their consent.
And if it's a group events then it's rather bothersome to ask each times and not always sure to get a positive answer.
Some of my friends believe that it's enough to  just cover the face of other children with any random object but it's actually not enough considering the latest issued law. As long as anybody still can conclude and notice who thta person is from the event itinerary, location, group identity and the clothes sometimes... Then it is still considered a legal recognition, so there is still a possibility to be sued if that person really mind. 
So, I prefer to avoid it unless I am rather sure that the related persons are not too concerned about such issues, or unless it is in a public events and not really a closed group event.