Dinner thoughts

Yesterday was productive. Thanks to Dr.MLK I had the day off.
I woke up earlier than anticipated, due to another call from work for Mike. He was on-call the last week. He had to go in to work so we got out of bed and started the day.
Once I finished getting ready I began to clean the kitchen, and once I started I just couldn't stop. I cleaned until my kitched was sparkling. I think only a few lucky specks of dust got left behind. After that I went out and did some errands came home and cooked dinner (Mike was gone again on another call). I served my self a plate of food and sat down at the table to eat. And just as I was about to stick my fork into my meal, a thought occured to me.
When did I become an adult?
I don't remember passing through a gate or seeing a sign saying "Welcome to Adulthood". I never received a certificate, nor did I take a class. But somewhere along the way I became responsible for myself. I clean without any other reason but just to have a clean house, I choose not to purchase things knowing that at the current time I cannot afford it. I cook for myself and think not only about caring for my own well being, but also for Mike's.
It snuck up on me. No warning. Just here on a permanent visit. Yet with all this adult-like behaviors and responsibilities, I do not feel like an adult. I have at least a few inches more to grow, years and years of things to keep learning, I whine when I'm cold and tired and I still almost always have proof on my clothing that I ate at least one meal that day. And I don't think I will ever overcome any of these behaviors.
So the question still stands. Am I adult?
In years? Yes
In responsibilites? Yes
In behavior/maturity? Mostly
At heart? Maybe, never.