I suspect most dual citizens have that status through no decision of their own, but through parental relationships. If you are born in the U.S. and one of your parents is Canadian, then you are automatically a dual citizen through no effort on your part.
That’s how we got stuck with an ineligible nominee from Jamaica/India/Canada for POTUS. We got a creepy dual citizenship Dipstick Court judgee telling the President he has to dump billions if American taxpayer dollars on the USAID thieves in the crap holes of the world.