I personally use the phrase 'the energy I get from food' rather than use the word calorie. As it is a concept and not a number to be counted, I like it a lot.
On the other hand, when I am experimenting with my health markers by lowering the amount of energy I am taking in from food - calorie counting is a very straight forward way to do it, as ghastly as it is. Other ways are no-food fasting and intermittent fasting, which do not entail watching energy from food over the day. but dependent on time periods. But I personally have found calorie counting as a good way for me to eat something, but keep it at small enough amounts of food to make a difference for me metabolically (ie on my health markers with T2D). That is also called a 'very low calorie diet', the Blood sugar diet, and of course - the newcastle diet. I just see 'calories' as a means to a health end, in this case. I would never dream of living like that fulltime, only for as brief a period as possible, (so far - two lots of two-months in five years) and use calorie counting food intake only as a desperate act to decrease my metabolic ill-health! (As it happens to work.)
If I didn't get type two diabetes, I would never have bothered counting a calorie, gladly have had nothing to do with Prof Taylor, Dr Fung, and Dr Mosley (as lovely as Michael Mosley is) I cannot stress how personally sad and disappointed I am that I have to look at my waistline as a determiner, perhaps, of how long I have to live. I enjoyed my life before I got really sick, not giving a toss about such things. Sigh. And that life now includes, sometimes, counting calories. Big sigh.