I know a lot of tattooed and pierced people and tbh it's none of my business, some look great, some don't look great ( to me) but all have expressed themselves as they see fit and most people tattoos are meaningful to them.
I've got my ears pierced six times each ear and you can't tell when they are removed, I have my nose pierced ( likewise you can't tell) and my navel pierced, again quite unnoticeable. I have one small tattoo of my partner's name in an ECG tracing on my innermost thigh, so not noticeable at all unless I'm naked. I can't have anything very obvious in an ideal world because of work ( although there is good coverage make up these days.
My partner has 15 tattoos at the moment, some small some larger, all of which mean something to him, including my initial worked into another tattoo, and a very old ear piercing which he practically never wears.
I tend to think it's not a 'fashion' more a form of art and self expression a AL suggests.