ages 1-5: Believe in santa, super excited, everything is new and magical, get a ton of gifts
ages 6-10: May or may not still believe in santa, still get a lot of gifts, very exciting.
ages 11-15: Don't believe in santa, thus the excitement factor is reduced greatly. Christmas is starting to seem more like a routine.
ages 16 and beyond: Christmas is nothing new, your parents give you less because you're older. YOU actually are expected to get others gifts. Wish you could go back to being a little kid on christmas.
17 year old at christmas time: Studying for finals, Christmas comes and all they get are socks.