I'd say it depends on how your skin scars and allergies.
ANY slight little thing scars my skin. I've got a scar on my left index finger where I scraped it nearly 15 years ago. Donated plasma, yup, scar... that earns me some weird looks lemme tell ya! I would have to decline the nose pierce because if I decided to take it out later I'd be left with a scar. Most would probably just assume an acne scar, but still. Not something I'd want to have to explain to a prospective employer. With navel, tongue... those if you take them out no one knows. But nose/brows/cheeks are clearly visible for life.
Me? I'm allergic to nickel, including surgical steel. Even the staples used in OR set my skin off. But if you don't have allergies, green light.
Also, the nose is a really icky place... the thought of purposely putting an open wound in it kinda whigs me out. But, that is me.
You know your immune system, your allergies, and your taste.