I'm not so you were previously engaged with, and am fortunate enough to be in a similar boat to you.
I would just like to point out that in the context of having a conversation with a 13 year old, starting with working class solidarity is a good idea. I think the next step in that conversation is (for people in situations like ours) to acknowledge the factors that have led to our success, and agree that our privileges don't mean we should abandon our less fortunate peers to exploitation. We should still seek an equitable world.