system
Given the following post, respond as if you're commenting on Reddit:
human
I think that all prices displayed (e.g. on the shelf at the store, menus, etc.) should display the real, final price. CMV

In some countries, such as France, the prices shown on menus, price tags in the store, etc. is the actual price the consumer pays.  Not the price before tax, not the price before fees, but the actual price. 

In other countries, like Canada, the price shown is before taxes etc.  I feel this is inefficient and mildly harmful to consumers.  In most places, there is no indication as to what is taxed and what isn't - you just have to know.  

And it is not always simple either - in my region, the exact same item (milk) could be taxed or not taxed, depending on the quantity you buy.  500ml of milk = tax, 2 litres = no tax.  One muffin = tax, 6 muffins = no tax.  

The counter-argument I see is that displaying pre-tax prices prevents governments from hiding taxes, and forces the government to display taxes to the consumer.

But this argument makes no sense - since the receipt will always show the amount of tax you pay, regardless of whether you are in France or Canada.

I see no downsides to mandating displays of real prices.  Please CMV.

Edit:  I am specifically referring to places where the price is fixed (stores in real life, restaurants, etc.).
gpt
This practice is common in countries with many different regions (provinces or states) that all have a different sales tax. This makes for a tricky problem for companies which ship their products across these different regions, as the price of their products wouldn't be consistent. 

Keeping sales tax off of items also allows prices in stores to be the same as prices online.

To sum it up, its easier for the companies.