It’s been many years since I worked in a supermarket but I’m sure I remember that pallet lifts had a safety device whereby it only moved if someone was controlling it. If you walked away the handle would drop, engaging a brake.
How come baby prams don’t have a similar feature? Why make it so hard to engage the brakes on a pram that you’re less inclined to bother?
Not only should such a feature be designed (though I’m confident there are already prams available that do this) but it should be mandatory. Like wearing seatbelts. As long as it’s not something stupid that requires you to maintain a grip on a bar like a grenade striker lever then it shouldn’t detract from the ergonomics of pushing and controlling a pram.
As I said, I’m sure someone’s already come up with a design – show me what’s been done!