Who on earth uses a tablespoon to measure butter?
You seem unaware that the American tablespoon is a standard unit of volume equal to half a fluid ounce.
Just fyi, so you dont make a spectacle of yourself again for the entire online universe to see, butter in the US is sold in one pound packets, and within each packet, the butter is separated into quarter pound units, cut lengthwise, known as 'sticks'. The paper wrapper of each stick is marked into half ounce units, also known as 'tablespoons'. There are obv eight tablespoons per quarter pound.
You simply slice off a tablespoon of butter using the handy marking on the wrapper. No actual tablespoons are needed.
Though there are standardised measuring spoon sets with tablespoon, half tablespoon, teaspoon, half teaspoon, quarter teaspoon, and one eighth of a teaspoon spoons. You dont have to go digging in your cutlery drawer for the right spoon.
Equally, there are standardised cup measures, and you can buy a set containing cup, half cup, third of a cup, and quarter cup measuring cups.
Recipes are expressed in volume, not weight, but many recipes you find online can 'translate', or you can Google the weight equivalent of an ingredient.
Have I blown your mind?