Being a musician usually requires a certain lifestyle which is the complete opposite of athletes or any other profession for that matter (specially rock stars). Check the rock star's children that we see on TV or read in magazines, they're rarely normal and that's for the ones who have devoted themselves to the music and are big stars.
you guys are looking at this by thinking of equality between human beings and their rights however that's not the case in real-life but it does sound very open minded and its probably legal therefore true