Everyone mishandles their first piece somewhere. The five we hear about, in order of frequency.
One: the dishwasher run. Usually once, usually a housemate. Alkaline detergent fogs the finish. Remedy: accept the matte look, or polish gently; function survives.
Two: curry stored overnight in the pot. Acid works on the lining for hours. Remedy: decant leftovers; the faint marking fades into general mottle within months.
Three: maximum flame always. Scorches the outside faster and teaches nothing about the pan. Remedy: drop to medium and discover that timings barely change.
Four: sealing it away damp. Closed cupboard plus trapped moisture equals dull bloom. Remedy: towel dry properly and store open.
Five: panic-scouring the lining because it stopped being shiny. Tin is meant to go grey. Remedy: stop, read the wear-signs post, relax.
Notice that none of these ruin the vessel. Peetal forgives beginners, which is part of why it survived centuries of them.
Flat-lay of a well-used peetal vessel with a sponge, towel, and open shelf behind it.