Me, I should not worry as I am a crypto casino gamblers for years already.
When we reach certain limits in crypto casinos sometimes they may require KYC in order to let you withdraw the big amount of money you have won.Some of them do not let you withdraw 10.000 Usd in Bitcoin without verification.However this is just between you and the site and the crypto sites most probably different from the Fiat ones do not pass your documents to the government as easily as Fiat casinos do.You,I and every crypto lover are safe for at least 5-7 years to come.
I think bettors that stake big amount of money are mostly betting on fiat casinos, but with this restriction by their government, I'm sure we will get more gamblers to adopt in crypto gambling. $10,000 is a huge money, I never gamble or won that in a crypto casino so I guess I'm safe with the KYC though. But if you look and compare crypto casinos between fiat in case that 100 EUR limit will be pass into law, fiat casino in that particular country might shift its operation in different country as there's no way they can maximize their profit when the government itself are limiting people to gamble.