Frugality lost favour in the 80s, when greed became good and there was no real need any more to be thrifty. A lot of Mums lost the ability to be thrifty because there was no real pressing urgency to save money by reducing waste, being creative and working more. Besides, the throw-away mentality was well and truly established. Consumerism got rid of the bit that was left.
It only takes a few years to reverse some cycles, and now that signs of reversal are here, frugality and thrift are becoming essential in some homes, if not all. And the learning curve can be steep if your mother never had the need to teach you certain things like how to look after the cents, because the dollars look after themselves.
Yes, a good hub can be created on the concept and history of frugality. Must think about it. Glad you asked!