Comic strips with ageing characters are still very fascinating to me, since it's very rare for there to be one. A lot of comic strips prefer to freeze all the characters into the same age for years even as the environment around them had evolved, such as the introduction of smartphones. Some of the comic strips do age the characters but there is an "age ceiling" where characters stopped ageing once they reached it. An example on this is Peanuts, where even the baby characters grew up but are still stuck as children. I think Gasoline Alley might have frozen the ages of the characters in recent years but it's been years since I checked that comic.
One example of a comic strip with ageing characters is Baby Blues which is about a couple raising a baby, but eventually they have another two children. The ages of the children while each new baby was born are different, although the age of the characters started to slow down when the third child was born. It's interesting to note that Zoe and Hammy are still extremely short (a little taller than a baby's height) even if they are not babies any more. (Top 2: 1990 comic, bottom: 2018 comic; I haven't found a modern comic with all 5 members in the family present).
Another comic I would like to highlight is Arlo & Janis, since the characters do age and that is best seen by their son Gene who is an adult at this time of writing, whereas he was about 8 years old when the strip started (by contrast, Arlo was 35 when the strip started). The cartoonist (who hasn't been replaced, by the way) mentioned that it's to make technological and social advancements less awkward compared to if the characters were to have an age freeze. The age gap and a gag might hint that the titular couple are within their senior years (55+) already, meaning that Gene would be in the late 20s at this point. Comparison between an early strip and a strip from 2019. Noticed how different the characters look, especially the son Gene (last panel in second comic). Top is 1985, bottom is 2019.
One example of a comic strip with ageing characters is Baby Blues which is about a couple raising a baby, but eventually they have another two children. The ages of the children while each new baby was born are different, although the age of the characters started to slow down when the third child was born. It's interesting to note that Zoe and Hammy are still extremely short (a little taller than a baby's height) even if they are not babies any more. (Top 2: 1990 comic, bottom: 2018 comic; I haven't found a modern comic with all 5 members in the family present).


Another comic I would like to highlight is Arlo & Janis, since the characters do age and that is best seen by their son Gene who is an adult at this time of writing, whereas he was about 8 years old when the strip started (by contrast, Arlo was 35 when the strip started). The cartoonist (who hasn't been replaced, by the way) mentioned that it's to make technological and social advancements less awkward compared to if the characters were to have an age freeze. The age gap and a gag might hint that the titular couple are within their senior years (55+) already, meaning that Gene would be in the late 20s at this point. Comparison between an early strip and a strip from 2019. Noticed how different the characters look, especially the son Gene (last panel in second comic). Top is 1985, bottom is 2019.
