Boredom is a source of creativity, or so I remember after an article I read. In all honesty, I have experienced it and some of my most profound(?) ideas came while I was bored.
The better solution is experimenting instead of being bored or chasing a hit. That with proper design and risk analysis.
I am sure they could sneak - if they already don't - some time on social media while the kids are playing on their own. For a kid, time with their parents is integral for growing up and having a healthy relationship with them. Most kids however don't get to experience it.
Additionally, time spend on facebook and social media has correlation with depression and stress. I don't think this is the best environment for a kid to be brought up.