I don't understand how American plates work.
Euro plates go up in intervals of 5kg so you can substitute 1 plate (20kg) with 2 half plates (10kg)
But American plates go up in 10lbs starting from 15. So you cannot really substitute 1 plate (45lb) with 2 halves (25lb) because then one side will be slightly heavier for no reason
How do Americans cope?