Two German states are about to attempt introducing a law at the federal level banning all knives with blades longer then 6cm (~1.52.3 in) from beeing carried in publicin public.
The vote was pulled in the last minute, because they didn't expect to get the required qualified majority. This was among other things due to the German governmant announcing to vote against it.
Germany is about to have an election next year though and the conservative and faschist parties are expected to win, I doubt they would be holding this position.
France is also having an election soon with the faschists expected to win big. And their current government is responsible for this law not beeing even worse.
TLDR: It didn't pass yet, but this will not be the last attempt at passing it.
Weigh some things you know the exact weight of like 1L of water or your phone (you can google most phones weights, without the case and only if you dont have a screen protector of course).
I had the same issue at home but realized my scale was jus off most of the time.
Wth, I always use them to pay when I have one...