The rule of thumb with these regulations unfortunately for the most part is: Better safe than sorry. These regulations tend to get abused by shady lawyers who

The rule of thumb with these regulations unfortunately for the most part is: Better safe than sorry. These regulations tend to get abused by shady lawyers who specifically target small business that supposedly don't comply with the rules. The same kind of reasoning for example applies to the notorious legal notice requirement for websites in some EU countries: The exact requirements for these documents are still not entirely clear. People and companies go to great lengths to implement (hopefully) legally compliant legal notices for their website while many of them are really just cargo cult intended to appease powers beyond one's control.