do whatever you want,, i't not banned in the country but school might not allow however i'v seen few students wearing it in classes.

Now, as seth99000 & some others write that wearing earnings would attract more gals & u would be different from generic public is holy crap. You should be confident on yourself, keep yourself well stylish without needing to pierce your ears. I'v had plenty of gals at my time without a single pierce.