The hawaiian state had banned teaching hawaiian until the 90s
Hawaii has been occupied since the late 1800s
They only recently started teaching in schools that the overthrow even happened
The native Hawaiian military was oppressed so harshly, martial arts in general were declared illegal in Hawaii. The locals worked around it by disguising the basics of their military arts as dance. You might have heard of the hula…
https://olohe.global/luahistory.html
It’s a bit more complex than I thought. Lua practitioners are expected to know how to hula before they learn any destructive arts. Any male hula dancer you see has a decent chance of also being a hardass martial artist.