From a grown up perspective, being a baby has got to be the trippiest experience. You're dependent on your adult caretakers for your every want and need, yet your intelligence is developing at the fastest rate it probably ever will. Also, everything is so new and exciting that scientific researchers have literally compared the infant brain to that of somebody on LSD.
Needless to say, if it's overwhelming being somebody that young, it's certainly scary when you're raising them. Babies can be mighty cute, but they're also mighty hard work. Nothing makes a person rethink all their life choices quite like the onslaught of new parenthood, which is why it's the perfect candidate for a batch of relatable memes. They're messy, they make you lose sleep, and they're occasionally very entertaining, just like tiny children. It's pretty wild how there are so many similarities, when you sit down and think about it.