How many hoodies should you have?

At least three.

One for the crime.

One for the next crime, while the first is being cleaned to get the blood out..

One for dress.  With a slogan or logo?

None as far as i can see

Enough for your heads.

lol use to wear hoodies and jeans and trainers in the mid late 2000's when I had the physique and  youth,  now I look like a nonce if i wear that kinda stuff.

strictly shirt and jeans and smart shoes for me these days.  look smarter that way, doesn't take much effort and the ladies appreciate a well dressed man ^_^

The answer is not far fetched. You can own as many hoodies as possible however as a minimalist, you should reduce them to a maximum of five to easily maintain and replace them without cluttering your closet. Three for errands, one for exercise, and the last for keeping you warm at home.

About 6 should do....

i don't have any ... why would i want one?  I wear a hat -- different types for winter, and summer

There are no regulations regarding hoodies.

I don't have any since I don't care for them. If you like them you can have as many as you want. 

Six point two.