Your people are living within the ruins of their former greatness, unable to understand let alone duplicate the feats of their forbearers. Members of your culture are often superstitious, even worshipping past technology or their former achievements.
Well-to-Do: These are the upper end of the middle or merchant class in Barbarian and Civilized cultures. They typically own larger homes, have a household servant (a cook and/or a maid), have private transportation, and sometimes travel abroad.
Martial training: In adolescence you trained with the weapons of your people and learnt how to use them proficiently (work with your DM to determine details)