The average car in the UK is ten years old: https://www.racfoundation.org/media-centre/average-car-in-th... ; while I have an 18 year old car, I'm an outlier on my street.
It's true that most people don't buy new, but there's still 20% of purchases new, and a steady flow of EVs into the used market.
https://www.scrap-car-dealers.co.uk/latest-news/post/average...
> As of 2025, the average age of a scrapped car in the UK is between 16 and 20 years old!