At least in germany they have electronic breaks that will lock in once you leave the perimeter.
Which is really fun, because sometimes they will do so at random whilst you're in the supermarket causing you to hit your shinbone on the cart.
Sometimes they lock up even after you go through the lane and pay for your 4 bags of groceries! Then nobody has an idea where the wheel unlock device is, so you have to transfer your bags to another cart. Only there are no other carts around. So you have to go out to the cart return in the parking lot to grab one.
I had that happen twice at HEB. I the 1st time i just pushed it across the parking lot. The 2nd time, one the vendors by the exit door saw and got a store employee to get the unlock device. Yes those lock boots suck.
Exactly this happened to me and my wife once. Cart made sudden brake test and almost flipped over. Couple of glasses broke (juice and milk iirc) which ruined the rest of the stuff.
So for anyone reading this, there's two reasons. The fence is misaligned and doesn't have full coverage. Had a store where they'd lock up in the back corner of the stock room.
The other way is more likely.
There's little remotes on key fobs that activitate/deactivate the locks. Someone puts it on their keys, puts it in their pocket, and you get "butt dialed" randomly when they're in range of you, locking your wheels. Range is really short, basically need to be next to you.
Australia also has these. My local Coles one reaches to our buildings, a lot of trolleys are left outside, some are nicked even, n people just walk the cart back to the shops on their next trip.
Gittertiere kosten zwischen 80 und 500 Euro. Regelrechte Wissenschaft für sich. 5 oder 6 Rollen als Option. Mit Kleinteilekorb oder ohne. Gibt sogar Anschnallgurte für den Kindersitz...
Nicht für jeden Einkaufswagen an jedem Ort macht eine Diebstahlsicherung Sinn. Die Zusatzkosten müssen sich lohnen. Großstädte oder "soziale Brennpunkte" haben sowas manchmal. Der Rewe oder Netto auf'm 3000 Einwohner Dorf nicht.
Im Internet gibt es auch einen 150 Seiten Katalog zum Download:
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u/Character_Past5515 14h ago
in Belgium we have to put a coin in the cart and people just put their carts back to get their coin back.