The Xbox line goes: Xbox, Xbox 360, Xbox One, Xbox One S, Xbox One X, Xbox Series S, Xbox Series X.
The kids may know and understand this, but parents may not. If you go to a store today, you will only find the latter two, and you won’t have an issue picking the one your kid asked for (i.e. the X). But when both generations were on sale, the parent might end up buying "One X" instead of "Series X" because it’s cheaper, or buying "360" instead of "One" because it’s clearly bigger (by 359 no less).
15+ years ago when I worked at Target's electronic dept over the summer, it was hard enough for parents to track whether the PS2 or PS3 was the latest one much less where a "Wii" or "360" fit into that.
The Xbox line-up is just comical. I walk through any gaming department and see an "S", "X", or sometimes even both "S" and "X" on Xbox games. If it was just "Xbox 7" and "Xbox 8", you'd at least have some idea of what's going on.
It's like someone who knows nothing about cars trying to figure out SE vs LE vs CE vs XLE trimmings when looking at accessories.
The kids may know and understand this, but parents may not. If you go to a store today, you will only find the latter two, and you won’t have an issue picking the one your kid asked for (i.e. the X). But when both generations were on sale, the parent might end up buying "One X" instead of "Series X" because it’s cheaper, or buying "360" instead of "One" because it’s clearly bigger (by 359 no less).