I don't really know how to answer this one. In some ways, yes, compared to modern middle class standards, we were frugal (fast food from chain restaurants was reserved for birthdays only, home-cooked meals every night, packed lunches for school, and just knowing not to ask for expensive things because it would cause stress).
But on the other hand, my Dad was a 'lifer' when it came to his job - he was born in 1931, so his career involved going to trade school, leaving at 15, apprenticing and then working for the same firm for the next 40 years. Early retirement is just a fantasy to him - you work hard, earn your money and don't ask for much. And he was/is quite useless with what to actually do with the money once he got it. Much of it would just run through his fingers to goodness knows where.
My Mum was much more frugal - it was her who put the brakes on him upgrading the car as often as he wanted, and she would talk him out of many impulse purchases. Didn't stop him randomly bringing home new gadgets for the kitchen, or upgrading the lawnmower for spurious reasons.
They knew how to save, but they would 'save up' for special things and then blow all the savings - trips to Europe, for instance.
They were saved financially by two things:
1) one of Dad's impulse purchases was a holiday house, where we spent ALL of our holidays growing up. Owning and furnishing a whole additional property just so you can vacation at it is not the best use of the money. But what DID work for them was that when they decided to sell, house prices had risen substantially, and also they sold through a rent-to-own arrangement, which the purchaser got through 80% of the process of buying, then had a marriage breakup and subsequently defaulted on the remaining purchase. Meaning my parents got to keep the money AND the house. So they sold it again (more standard arrangement the second time, as they had found the first arrangement quite stressful).
2) My mother was 21 years younger than my Dad, so even when he retired at 65, she continued to work full-time, so his retirement savings were not needed so much for those years, and could accumulate.
Of course, since mum died at age 55, Dad (then aged 76) has had to survive from his pension and savings without anyone telling him not to spend stuff. That hasn't gone quite so well. He is now 83, has a new, wealthy and spendy partner who likes to go on cruises and eat out and fly to australia for holidays. So we shall see how that goes. Thankfully there is actually a pretty good safety net here for elderly people, and he could get subsidised housing and enough money to pay the bills as and when his investments run out. And hell, he's 83, so he might as well spend it.
To be honest, I haven't the foggiest idea of how much money he has, aside from a gut feeling it would plenty enough if he was careful, but not so much he couldn't spend it all within a couple of years if he's an idiot.
TL;DR - my parents knew how to trim the fat in order to 'save up' for stuff, and they always found the money for things they valued (holidays, music lessons, ballet classes, sports etc), but they had no real clue what to do with money once it was saved, and had no idea that the 'good life' could involve anything more than working at their jobs so they could buy a newer car or have a holiday in Europe.