am I a spoiled brat?

I was working with a group of people and a girl from another group came to our table since she was friends with them. She started talking about the iPhone 7 and how it costs so much which in the end led to everyone at the table questioning about my "financial" life all because I said that the price was fair. I'll spare the extra details and just say how I'm basically "set for life" without ever having a job or having to work for something. I mentioned how my family was homeless when I was a baby, and how we basically went from rags to riches (if that's the right term). But even if I have that opportunity, I still go out and look for jobs, make my own money other ways and pay for my own things and basically try to learn the things that I would need in my adult life. The girl stares at me giving me a mean look and I was confused on why. I was proud of my background on life and how my mother worked hard to get us here, but the way they looked at me, I thought I did something wrong.