I work in healthcare. I have never had a problem with an employeer discriminating against tattoos. Mine are coverable but many coworkers have visable tattoos.
My husband is an EMT on an ambulance and has a near full sleeve and visable tattoos on his other arm.
I tend to stare because I like to study the piece. I sometimes get a little uncomfortable when people do the same with mine, so I guess that makes me a hypocrite.
I tend to look longer at pieces I really like. Bad tattoos are a glance, good ones are a good look, amazing ones get the stare down.