The only reason you were able to work an unpaid internship is because your family not only didn't need you to work, but they also didn't need you to watch younger siblings in your free time. To top it all off, that was offered to you - this isn't a thing most folks can do. Not to mention that unpaid internships are often slavery under a different name. If someone wants to give someone experience or train someone, they should pay.
I wish people would quit acting like the market is fair by any means or like people have a real choice in working. Neither of these things are true with the labor market.