In that period France and England are not that different… it's the Hundred Years War! So large bit of France are English lands. For example in 1360 in the Treaty of Brétigny Gascony and Calais are ceded to Edward III in exchange for the liberation of Jean II (John II of France).

Moreover I would like to challenge the assumption that there is a "common man", would he lives in a city or in a small village? Would he lives near the coast or deep in the mountains? Would he lives in Provence or in Flanders? Would he be a farmer? a logger? a smith? a poor priest or monk? or a butcher? a soldier perhaps? Would he be a man or a woman?

Nevertheless he would certainly not carry a weapon if he did not need one for his work. It is difficult to have an idea of what would a common man or woman look because they were rarely represented but we can infer some elements from some pictures like this one from Froissart's Chronicles he was a French-speaking chronicler from the Low Countries, the miniatures in this edition were made by a Dutchman Loyset Liédet circa 1470 so when Flanders was under the Duke of Burgundy Charles the Bold, so it is not France per se but it is disputed territory. The interesting part is in the "margin" where you can see different people depicted in diverse trades, each with their own attire and that would probably be true elsewhere you would dress accordingly to your trade, the season, the weather and the local fashion.