Are there many types of personal colors? Do I have to match them all?

Since the topic is personal color, I looked it up.

The types are divided to that extent. Is that correct?

Is personal color divided into all four seasons? Why is it divided by season? That is what I am more curious about. Why divide personal colors by season? Once your personal color is determined, shouldn't you just choose products based on that and be done with it? I honestly suspect this is just a marketing ploy to sell products.

Personal color is a difficult issue for me.

It seems like there are too many types. So, do I have to buy everything—hair, clothes, cosmetics, etc.—to match the season?

Wouldn't it be too hard to get all of these right?

I am really curious if the types of clothes and colors for spring, summer, autumn, and winter are also categorized according to personal color.

Do they all do it that way...?