Water-taps used to have washers made of hide from cows, and it was generally not acceptable. Now no more hides and plastics are in the forefront.
Why is this no longer acceptable?
Should we ban hides from Dholkees from which Kirtan is played?
Should we ban hides from Tablas from which accompanies shabad?
Should we ban hides from a multitude of other uses including shoes, belts, "gatray" etc?
What make plastic purer than hide? What makes one more acceptable than the other?