Everyone keeps recommending black underwear, but sometimes I love wearing lighter colors. I’ve had a few mishaps, but I still can’t get used to wearing black. Do you think it’s a necessity or just a matter of preference? Am I overthinking it?
I think it’s completely a matter of preference. I’ve also worn light-colored underwear for years; accidents definitely happened, but washing laundry is ultimately the solution. Wearing black makes it easier, but it’s not a must 
if you don’t like wearing black underwear, you can opt for night pads or extra leak-proof underwear. This way, the risk of wearing light colors decreases
I think you’re overthinking it. Instead of taking risks during your period, it’s better to take precautions. Later, when something happens, you end up upset; how important is it to wear light-colored clothes then?
Actually, this has little to do with hygiene; it’s more of a practical choice. If you wash your laundry properly, it doesn’t matter what color it is. The reason black is recommended is that stains are less visible.
Here’s the thing: stains in light colors might not come out completely in accidents. But it seems like it’s also hard to check cleanliness with black laundry. Maybe that’s why I’m hesitant 
Is this black underwear print really the work of these companies? Recently, they’ve been constantly releasing products under the name ‘period underwear’. I think they’re trying to lead us.
The suggestion for black underwear is actually just a practical thing. Most women continue to wear light colors because they are simply not used to it. Just do whatever feels comfortable for you without holding back.