I want a nose piercing. I am 18, but my dad is pretty offended by the idea. A septum piercing appeals to me because when I come home from school I can flip it up and easily hide it from him. I think it would probably hurt more, though.
You're very attractive both would look good on you. I personally have had both and I love the fact about the septum piercing that you can hide it which I do a lot. That is why I would have to say go for the septum. It does hurt like hell tho (at least it did for me). Another great thing is that you can start stretching it and it will look even better (I have mine stretched to 00g which is pretty large but it looks really cute). So my suggestion would be to get septum and start stretching it. All the best.
Just get it. You only live once and if you dont like it you can just take it out. I always advise people to get piercings if they're thinking about it. Why not? its not like its permanent like a tattoo
Order fake hoops and septum rings on Etsy. No pain, they look real, and your Dad would surely have no problem with you wearing them, even in front of him, given they're fake. Then when you're 18, do what you want.