Is it just us or does anyone else find it very strange to have to remember to manually press the 'calc tax' button for every single product that we add to a quote?

And then even worse at the very end, we also have to remember to manually press the same 'calc tax' button in order to calc and display the final tax amount to add to the sub total for that quote?

I have a never seen any system that can't perform an automatic calc to add the total tax at the bottom of an invoice or quote.   Leaving it as a manual process is inviting our sales team to make regular human error mistakes by forgetting to miss this step, thereby missing the tax, thereby rendering our quote inaccurate and makes us look sloppy to our customers.