Hey there!
Here are some things you can add to that list:
#1 What is the child using that has them addicted?
#2 How much time is the child spending on the internet?
#3 Can this really be considered an addiction, or is it just my overprotective instincts?
#4 How much access does this child have to the internet?
#5 How can we make sure this child is not doing anything they are not supposed to on the internet?
#6 What started the addiction, and how can we end it?
#7 Or... how can we manage this child's electronic/internet time?
#8 Should there be any great health/life endangerment concerns?
These are just some ideas... but there are many more! Hope this helps!