I mean, showering isn’t that hard. My word.
If I can make a quick assumption, I think it's less
showering and more maintaining a clean home.
Even if you shower, if you're never vacuuming, never dusting, never cleaning your bathroom, never cleaning your furniture, never cleaning your windows, etc., the odor of the house will seep into your clothes. If you're never washing your sheets you literally sleep in your own odor. If you're washing your clothes incorrectly, putting them all together in a packed dresser or closet can make that odor cling to every piece of fabric you own, and suddenly after so much time of that you no longer recognize the smell because you're so used to it.
And that doesn't even bring into question the homes where pets are on everything all the time.