well the technical information is that if your children are whix kids then there isn't anything you can do which they aren't going to overcome in 5 minutes if they really want to.
Sooooo, yes it does come down to parenting advice and how the problem can be approached from a different angle.
Something to think about though. Rather than exacerbating the issue why not try and let it run it's course. Teenagers have fads and go through fazes and atm they'll think it is a cool thing to do because everyone else is doing it and it isnt something they have done before. As with everything though, there will come a time when it isn't a novelty anymore and it will seem normal and they'll revert back to using it as and when they need to. An anaolgy is facebook. When I first joined back in 2009 everyone I knew was going nuts about trying to add the universe to their friends list and there were two people I knew who had over 2000 people on their friends list and everyone else I knew was in the hundreds. I didn't get it at the time and I stuck to my measely 52 friends
Something seemed to click in 2012 and people started to see sense and started pruning their friends lists and only having proper friends who they wanted to talk to on it. The moral of the story is that the 50 million people on your friends list went out of fashion (although it did take 3 years)