I have quite a few but have also got rid of quite a few in recent years.
Now I have three wool coats, black, light colour and a tweed one.
One main puffa coat for proper winter.
A couple of wool jackets to wear with trousers in autumn, so not full on winter coats.
A mac, but I always get chilly in those.
A light coloured fluffy type thing, cropped, I don't even know what that is.
I don't count blazers/thin jackets as these are not coats!
I don't get the 'hood' thing because I don't have a dog and I have an umbrella, so I wouldn't be walking so much in the rain as some people- when I did walk outside a lot, I did have a walking jacket.
I get a lot of wear out of winter coats as I prefer to wear lighter things underneath and throw on my big winter coat, I'm already wearing the tweed one. I'm not a big fan of large jumpers and then a coat, too much bulk and feels restrictive.