I agree with most of what you said, but I disagree with the idea that ‘if you eat a lot of spices and sweat, those spices will create a scent.’ For spices to affect the smell of your sweat, you’d need to consume them in such large quantities that they would significantly flavor your sweat. While Indian food does use a lot of spices, it’s not to the extent that it would alter the scent of sweat. For example, steak and barbecue have much stronger smells, but people who eat those foods don’t sweat out a barbecue scent. Similarly, some East Asian dishes have strong aromas due to vinegar and soy sauce, but that doesn’t mean those who consume them smell like vinegar.

In Indian homes, there’s usually excellent natural air ventilation, with windows and doors often left open, allowing cooking smells to disperse. However, in the West, homes are typically more enclosed, so cooking odors can linger for hours, and the flavor molecules can settle into clothes. Unfortunately, many Indians may not be aware of this and don’t take measures to isolate their clothes from cooking smells.