Our family's journey through life

So I started my new job today. I am a little disappointed that nobody made any guesses. Well if you know me personally you could probally guess that it has to do with working with children. since that is what I love to do and I am thrilled to be caring for this little man Cian. Here is Owain and Cian playing together today.
Owain patting Cian. So far he has been pretty gentle.
Can you guess which one is older?