How old do I look?

Me at 19

Me at 24

I'm asking this because I honestly think I look older than I really am. I'm 24 years old and I think people perceive me as being in my late 20's. I think having 2 kids already age me quite a bit and maybe being with Juri also, who is 31. 

I'm talking about age because today I had an interesting experience.

I was cooking dinner when the doorbell rang. I thought it was Juri coming home early. I opened the door and there was a guy, a firefighter, who was going door to door to sell their calendar. When he saw me opening the door, he asked me right away if "our" parents (Taiamani and Ilyah were with me) were home and if "they" wanted to buy the 2008 calendar. When I said that they were not home, he just left.

Do I look that young, like a teenager?