>>936682025 (OP)
By not wearing underwear in the summer, you are producing fewer dirty clothes and saving on water and heating. You are helping to reduce your carbon footprint, and Greta would approve.
>>936682481
I don't know enough peoples pooping habits to call it weird, but it is certainly thorough and I believe you do not need to wear underwear ever if you are so thorough with cleaning your bum bum. But I'm no expert.