Great entry dear friend. Fixing the time for watching games, and videos is the best way to reduce its negative effect on kids. Check their browsing history and keep an eye on them. Yes, kids need parents' attention if they didn't get involved in bad things. Parents' little attention makes them much happier and their bonding become also strong with them. It's just a time game if we manage wisely otherwise we ruin our kid's life. Best of luck. Success for you.