From about 1294 to the time of the French Revolution in 1789, the people of France were expected to strictly follow what were known as ‘sumptuary laws.’
Only royalty could wear expensive materials like ermine and fur, or silk, velvet and brocade. Other classes were debarred from clothing themselves with materials that were associated with the aristocracy.
Since France at that point in time was under a monarchial rule and these rules were made by the royalty for themselves as well as for others, people did not defy them