Why would the feudal system being abolished be beneficis

ched be beneficial to the 3rd estate?

The end of feudalism resulted in the end of imposition of taxes and other type of liabilities on the people of third estate.

Explanation:

The end of feudalism resulted in the favor of third estate (common people of the estate, who were not rich and wealthy). The end of feudalism resulted in the end of imposition of taxes and other type of liabilities.

The National Constituent Assembly which was acted on the 4 August 1789, abolished the system of feudalism in the France. This system gave freedom to the people of third estate from the burden of taxes as they were earlier forced to pay to the government of the Louise XVI.