I totally agree. Anything can be addictive. I do think you need to monitor what your kids are doing and be responsible - which obviously is what is happening here.
My DS7 gets 20 minutes on the computer a day and he does manage to find some games that are for teenagers or adults. But we really monitor his usage and are there for answering questions, etc. And DS is really coming along with his typing ability too! He does need to ask before he gets in a chat room or creates a new account somewhere.
