system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come the US doesn't add taxes into the prices you see on the shelf?

When I was in the UK, it was SO much easier to shop for stuff, when you knew exactly what the total was gonna be (especially since I was just travelling, and had a limited budget).
gpt
Because taxes can vary on store items on the state, county, and city level.

Having to make one set of tags for everywhere and say "+tax" is far more economically efficient then having to make hundreds of tags for items with different prices.