The Unnatural Youngness of a Walmart Parking Lot

The story is actually something that happened to my mom, she actually just told me the story and I had to call it in. She used to go out to Walmart kind of late when I was out on like school trips or things like that and she was home alone. This was pre-COVID when Walmart was open 24 hours. When she approached them, she said they looked unnaturally young. They were dressed pretty normally. Jeans in a T-shirt, but she thought immediately were like, what are these kids doing? Can I help them?