Questions on my tire tread depth?

Left front should be 16/32 which is impossible seeing most new tires are 10/32 to 12/32 , Tires should be replaced when wear bar even with tread 2/32 Should run 5/32 tires on front so it doesn't pull to right. Miles left don't know depends on wheel size and tire brand. Also if front wheel drive, front wear faster.