Why did the front plug/connection come into being on TCs?

I don't know about the cost. My front-entering 7 wire cable reaches about 1/2 of the bed, so I need extension.
Than from front of the camper to taillights it takes 14-20' of wires for total over 20' without extension.
25-30' of combined cables for the power between plug and left tail that are 3' apart.
I already removed about 5 lb of excess wires from my camper.
My 120V wires not only are way too long, but they loop under countertop taking the space that could hid a person.