When I was in America I stood out of fear. It's not my anthem, not my country, but the number of death threats I got the one time I didn't stand scared the fark out of me. Jingoism gone stupid.
If it is not your anthem, I don't give a $hit if you stand or not, this is not your country and I invite you to Fn leave.
ALL of our soldiers do stand and salute the flag at anthem. If they pulled that kneeling craap, they would get a court-martial.offense and dishonorable discharge.