I don't feel like I am "scrimping" on much of anything anymore. Maybe I'm just adjusted to my own cheap ways? Years ago when I was just out of school, we deliberately scrimped by renting a dirt cheap apartment to save for a house and then scrimped on everything discretionary to try to save more, faster. It worked, though I still no longer care for bologna sandwiches.
Now, I feel like I am able to choose, but that's not the same as scrimping. I'm an easy mark for my kids and will quickly get them most anything educational, books, pay extra for classes, good shoes, new coats, good food, fresh fruits and veggies year round, piles of art supplies, musical instruments, lessons, pets and their care, little league, team parties, or even trips. But I'm unlikely to "choose" to spend on video games (luckily, for kids there are grandparents and aunts), designer clothes (we'll pay well for top quality, but not extra for the "name" or for certain fashion trends), expensive cable TV, lawn service (we do it ourselves), jewelery, and so on.
I'm in the market for a new vacuum. I'll likely pick an expensive one, but probably not the "top of the line" since what I want is top quality mechanics (and am willing to pay whatever it takes for that) but don't want a lot of "features" that I won't use and will be prone to breakage. Am I scrimping? I don't feel like I am, since I can pretty much buy whatever I want. I'm just deciding what I want.
I used to collect wine, even some top names. Now they are so popular that they are too expensive (hundreds of dollars per bottle and up) for the enjoyment I would get and I've moved to less expensive vintners. Am I scrimping? Maybe, but there's some kind of mental calculation of value received for money spent. I still feel like I'm able to drink plenty of very, very good wine, as much as I choose to, even if I never spend what seems to me insane money for top names anymore.
I agree with the statement that even average folks now enjoy a lifestyle of luxury by historic or world standards, for which I am very thankful. I don't feel like I "scrimp" on anything, I just get to choose what is important to me. Since FIRE is something I want more than consumerism, I spend less on some things and more on others.