>>63687077>Generally I think of middle age as like late 30s-mid 40s "Middle age" is going to be most of your life, not just a tiny 10-year period in the very middle. 0-18 = child, 18-29 = young adult, 30-65 = middle age, 66+ = old
(And yes, you can have subcategories like "teenager", "elderly", "toddler" etc. but the above are the broad strokes.)
You and that other guy's problem is that you haven't experienced that time moves much faster the older you get. When you're a toddler, one year feels like an eternity. When you're 35 a year it feels like a month felt when you were 15. That's partly why the later stages of life are much longer, because you don't change as much as you did when you were young and the periods "feel" around the same length even though they're clearly not. It has to do with relative lengths. One year when you're 5 is 20% of your experienced life. One year when you're 40 isn't even 3%.
"Middle age" hits around the time you've established your adult identity, and it stays until you're forced to change it later in life, usually due to health complications or family situation. It's a much longer period than the others. (Unless you live until you're you're 90+ of course.)
Point is, there's no point in having tons of variations within "middle age", because it's simply a much less varied phase of your life than childhood and young adulthood.
