So, I'm a step-mom to a 9-yr old and I'm 26. Now, granted her bio-mom is only a yr older than me. So it's not like I'm so much younger or anything like that. Anyways, back to what I was thinking originally. Most of my step-daughter's friends' parents are late 30s/early 40s. And there's one couple whose daughter she's friends with that happen to go to the same church as I do. And I'll run into them in the hall and always feel like I ought to be calling them Mr. and Mrs. Lastname. Not by their first names. And if she ever wants me to walk her into school, I feel like an imposter - not because I'm a step-mom, but because I feel like people might think I'm a big sister. I just feel like such a kid compared to the rest of the parents.