Teenage son's are so lovely

I was writing an article about obesity and the problem with our processed foods. My son here's me talking out loud and says "Well mom, you have to add in that back in your day you had to walk everywhere". I said "Back in my day?" And he was like "I mean when you were a child". I said "What do you mean?" This 15 year old fucker says "You know. Back in the olden days. Before people had cars".

HOW OLD DOES THIS CHILD THINK I AM!!???