My sister is, as of today, the great age of 23. Happy Birthday Betsy!

It's wierd how Betsy is 23 and Heidi is 24, yet they seem so much older to me. I have friends who are their ages, but my friends seem so much younger because I put them on my level. My sisters seem much more mature and sensible. The same goes for my sister's friends. Will my sisters always seem 10 years older than they actually are to me? I really admire both of my sisters. They are awesome people, and kinda my mini-role models in some ways.