Fashion (non)Sense

Is it all men that can't match their clothes?  And, is it that they can't or that they don't want to?

My husband and sons drive me crazy with this.  My older son, 8, will freak out if I try to make him wear a green shirt with blue jeans because blue & green don't match... so he must care, it's clearly a lack of fashion sense in his case.  But, he's 8, and he's learning.  What's my 34-year-old husband's excuse?

John thinks that any two or three shades of the same color are still the same color, and therefore, they must match, right?  I have to send him back to change his clothes more often than I care to admit. It drives me bonkers.  I'd also like to have a discussion with whomever decided making slider shoes for men was a good idea.  My husband will wear them with white crew cut socks and cargo shorts.  He also has a terrible time with that greenish-brown color that he somehow finds himself with.  "No honey, army-green slacks do not go with a sage-green shirt, and for the love of God, would you wear black socks, PLEASE?".  I don't mean to be so picky, and I let a LOT of his fashion errors go without correction.  I'm hardly a fashionista myself, as anyone can clearly tell, I'm every bit the jeans & tee shirt girl I always was... but my jeans & tees always match and they never have stupid prints on them, are stained or have holes in them.  After a few years of marriage, some of my husbands clothes have "disappeared"... like the "Bart-man" Simpsons tee shirt that I'm sure was from the late 80s.  I just couldn't stand looking at it anymore.