Ethan turns 7 years old in a couple of weeks and his sense of independence (and desire for it) is expanding as quickly as his vocabulary. He now routinely asks to do routine tasks by himself such as turning the security system on and off in the house. It's actually a pretty sophisticated process, and he takes it very seriously.
Part of his insistence on setting the alarm is, I suspect, to allay his continuing concerns about the burglary we had over a year ago. He continues to show apprehension even in the house with the doors locked. So, setting the alarm is important not only for his security but also for his growing sense of independence.
This sense of independence takes on other forms as well. He now wants to use the rest room by himself in public places. Just last night, we attended the Borah-Capital High School varsity BB game, and he insisted on going to the bathroom by himself as well as standing in the concession line to buy his own snacks. I was pleased to see that he routinely turned around to make sure we were watching him. And we were! Independence only goes so far on both the kid and parent side!