Well, I think there should be balance especially for those still schooling. While earning online is good,education should be a priority. Nothing should disturb education because we need education to handle things right and even to be internet smart. All the same, since your sibling is earning already, it's not bad if your parents can be educated on exactly is giving him/her money online. I guess when they see free earnings she is making with little effort--which is not disturbing his/her education, they might become softer towards the issue.