If you stand for it it generates freedom for that country.
If you knell for it as Colin Kaepernick did it generates tyranny.
When Adolf Hitler wanted to take power of Germany he played the national anthem and made all his supporters kneel for the anthem he was then able to generate enough tyranny to enable him to become dictator after playing it 100 times with about 15,000 Nazis kneeling for the national anthem of Germany.
If we don't always stand for national anthem we will become a dictatorship very quickly under the hateful eye of Barack Obama the new Eternal God emperor
(Edited 21 seconds later.)