Mobility scooters are everywhere these days. Britain's elderly and others who struggle to get about have really taken to them in the past few years - it's like a pensioner restyling of the kids craze for those mini kick scooters (now commonly available at car boot sales priced three for a fiver).
And most of us young drivers, after watching them crawl sluggishly along narrow city streets or blocking entire aisles in supermarkets, have dreamt about owning one ourselves.
Only we'd soup them up, with petrol engines and custom paint jobs. We'd all cruise around on them like 60's Mod gangs on their Vespas.
Anyone who's seen the Goldie Lookin Chain video for "Guns Don't Kill People, Rappers Do" will understand.
Part of the attraction of a mobility scooter is that you wouldn't need to shell out on car insurance for young drivers. The Department for Transport (DfT) doesn't require scooter drivers to carry valid motor insurance, as the buggies are classified under the same heading as other disability equipment like wheelchairs.
But the situation could be about to change. In the face of the current craze, the DfT is recommending mandatory third-party motor insurance be introduced for scooters to protect pedestrians and other riders.
A spokesman for the mobility firm Alexander Forbes Mobility Risk Services said: "There are parties that believe these recommendations to be discriminatory but they are in the minority - this is likely to go ahead in the near future."
Maybe the added cost of car insurance for young drivers for us (and Saga car insurance for the rest) will bring the craze for mobility scooters to an end, and it'll be them cluttering up car-boot stalls and charity shops in a few years.
But as with the majority of issues affecting the elderly, don't expect anything to happen too suddenly.