When you were growing up, you likely had a favourite toy. You probably also had a favourite colour, food, person, and so on.
As we grow, the whole concept of favourites starts to become more nuanced. We experience more of the world around us, and realize that the concept of a favourite tends to not be consistently accurate. What is our favourite is not as black and white of an answer as it previously was. If someone asks us what our favourite item is, we are increasingly likely to answer with "it depends".
Aging grants us experience. Experience grants us perspective.