Ah, yes, that's exactly how I got my very first chickens!
It was right after Easter and my neighbor had 4 dyed chicks. I was mesmerized by them and kept going to her house. She decided she didn't want to mess with them and gave them to me. Mind you, I was SIX years old at the time and came home with 4 dyed chicks in a cardboard box. Mom made a few calls and a neighbor loaned us a waterer. I have no clue what we fed them but we had the box over the heat register in the dining room so they'd stay warm. I'd play with them every day and then they got bigger and Bigger and BIGGER! We didn't have a coop or facilities for chickens so I took them to a friend who lived on a nearby farm. To the best of my knowledge, they lived happily ever after. Or they were Sunday dinner. Not sure which.
So, yes, they are probably more of an "impulse buy" for people who see them and find them cute without thinking of the long-term care required. My situation had a happy ending even though the chicks went through three sets of owners. At least we made sure that they got to a good permanent home.