Other signs you're dealing with a much older mindset:
There's a piano. But nobody plays.
China Cabinet. With China. Unused for decades.
Formal Dining Room. Also never used. Sometimes temporarily repurposed as Amazon holding area.
Formal Living Room. Only used for special occasions. Which are special enough the room hasn't been used in 3 years. Often features an unused piano.
Silver set(s).
Antiques. <Extremely valuable until you decide to sell them. Then you realize antiques require a buyer who wants a specific antique or the antique is just something unwanted and old.>
I'm on the low end of that age but definitely not the mind-set.
Piano on schedule to get tuned. Most of the time I use my Casio keyboard - habit from when I lived in an apt because I could plug in a headset and not bother the neighbors. Before I moved into the house, I had the basement finished with additional insulation so the neighbors won't hear much of the clarinet or sax. The piano is upstairs but the music studio is in the basement.
China cabinet - no china but it's my parents dining room set. Once I finish remodeling the kitchen, the entire set goes away. I donated the Wedgewood china to the Childrens' Hospital antique store years ago - let them deal with it. I always hated the china.
Formal dining/living rooms - first floor of the house is mostly one big room with the staircase in the middle. It's the perfect racetrack for the dogs when the weather is rotten.
Silver - once again, Mom's stuff - long gone. Should have waited to sell, as silver prices have gone bonkers.
The Waterford crystal is packed up in boxes on the top shelf in the back bedroom. No idea what to do with it.
Antiques - fortunately, only a few items Mom saved from her parents, and that wasn't much. Put the collectible china teacups on ebay, went in no time. On the other hand, Dad's grandfather was a jewelry merchant in Europe. Stones themselves not terribly valuable but in the settings, considered vintage or more appropriately Old European. I gave the engagement ring to my nephew when he proposed to his now wife, my niece got the wedding ring.
Big problem right now - the sofa. Again, from the parents. Very modern, rock solid frame, 70 yrs old, but multiple dogs have destroyed the upholstery. I either need it rebuilt/recovered or just buy a new one. About the same price. I'm leaning towards buying a new one but most of today's stuff is junk.
Writing this I just had an epiphany - almost all my furniture is from my parents' houses (they were divorced).
As for temps - furnace set to 64-66 in the winter, AC is 74-76 in the summer.