My sister and I could not be more different when it comes to standards of cleanliness. Although I’ve improved over the years, having a clean room was never my priority as a kid. I was only mildly frustrated with any kind of mess and not particularly keen about fixing it unless I absolutely had to, and even then, it was marginal. I literally taped string cheese wrappers to my wall as a kind of contemporary art piece, and I can assure you my sister would’ve never done anything of the sort.
My sister was clean and organized from the word go. It’s a blessing for her that we didn’t have to share rooms after I was 7 and she was 5, because my presence would’ve really harshed her vibe. She literally got hired by housewives in our neighborhood to organize their closets for them, and she did a darn good job at it.