I had a horrendous experience with a missed miscarriage recently. Of all the difficulties and stress and sadness of the last few months, this never once crossed my mind as an issue.
I'm not saying that it's not an issue for some people, but the thing about trauma triggers is that they are random and very personal. Generally speaking, we can't ask the world to change for us - we need to be able to manage ourselves in the world as it is - supermarket tampon displays included.