The minor wear on the pads is insignificant.
Just replace the pads if they are worn down.
Don't use the cheapest pads, use pads that last longer.
What if they are smooth, but “wafer thin”?
If the brakes are smooth, the disks do not need to be turned or replaced.
IF they meet the minimum thickness!!!!
Most modern rotors don’t have a lot of “meat” for turning, in an effort to save weight and aid heat dissipation.