I worry about it a lot. Just differently than when I was younger.
I still try to stay clean. I still use the kind of scent control pads that (I believe) help control bacterial growth on my body.
But I now make religious use of a string wind indicator and hunt the wind. Always aware of it, always.
Even if fart proof clothing worked, and I don't believe it does, wearing it, and counting on it just detracts from me having achieved something on my own, relying instead on a magic crutch.
As I get older, I get more and more set against that premise.
ChuckC