I had an interesting experience when I was in high school, watching this happen to my parents with a comic they enjoyed. I forget the name of the series...but the story went like this:

In the 80s, it was just a daily life comic, Parents with young kids, more from the parents perspective. As their kids [comic] grew older, so did I and my siblings [real world]. The comic progressed to show when their kids had kids [comic ]--in the 90s. My parents were also grandparents at the time, and they would smile and giggle as they shared the Sunday comics.

Being old enough to witness those moments were really touching to me. Made me have an even deeper appreciation for a story that evolved, but also watching my parents grow and change --not just "grow older".