My electric mower has lasted longer than the gasoline mower before it, which literally had plastic valves inside the carbeurtator.
Counter anecdote, I've had gas mowers survive decades and EV electrical equipment (in this case, a chainsaw and a battery pack for a mower) both die within 14 months of purchase.
almost all 2-stroke engines have had plastic flapper valves and a plastic fuel pump for as long as I can remember.
Counter anecdote, I've had gas mowers survive decades and EV electrical equipment (in this case, a chainsaw and a battery pack for a mower) both die within 14 months of purchase.