I have a parenting theory; I never do for a child what that child can do for himself. For the past few months I've given my three-year-old daughter my library card and stood a few feet behind her while she checks out her books at the desk in the children's section of the library. This morning I decided to take it a step further. I was out of sight of the desk, yet my daughter was ready to check out her books. I gave her my card and told her to go check out her books (I did tell her to make sure she got her "ticket" receipt so I would know she completed her mission.) She took the card and confidently strode off in the direction of the check out desk.
My little daughter was positively beaming from ear to ear when she returned from her little errand! She then trotted off happily to an area of the library where older kids (elementary aged usually) sit and read. I guess she thought if she was old enough to check out her own library books without mommy right behind her she was old enough to sit where the big kids sit! :)