In many EU countries, such as Germany for example, it is illegal to wear helmets or even any gear which might hide your identity like ski masks, large hats etc.

In many EU countries, such as Germany for example, it is illegal to wear helmets or even any gear which might hide your identity like ski masks, large hats etc. Are any of those laws EU-mandated though? Because while the bulk of legislation in member states comes from Brussels, and there is a lot of harmonization effort, it is mostly focused on economic regulations. German parliament passing a law carries no obligation for other countries to adopt similar legislation.