Ryland - so grown up

Ryland has asked several times in last past few weeks, "When I was a baby, did I have a brother?" We have been confused as to his reasoning behind this question until yesterday. While driving in the car at lunch Ryland tells me that he had to have had a brother when he was a baby because who else would have watched him and made sure he didn't get into things he shouldn't. Ryland is a very good big brother. He enjoy's protecting his little sister and making sure she stays out of things that she shouldn't be into. But I got a glimpse into his thinking when he was concerned about who watched him when he was small. I'm amazed everyday at how grown up Ryland is becoming. He turned 4 the end of June and has changed so much in one year. He worries a lot and wants to understand everything around him. Leland recently had to explain how water comes out of the faucet in great detail. Having a 4 year old is fun and exhausting because there are so many questions that require detailed answers. It all mankes me so curious what the future holds for him.