I don't hesitate to put wrong addresses/names/data on all but the most important forms here in the USA. Email addresses? Catchall address to be whatever I want. Phone number? A rejection hotline or online burner number works a lot of the time.
Virtually every business, including purely online services, will want your full address (and will often verify that the address is a real residential address by sending it to some dodgy identity-verifying third party). Very few websites will be content with a username and password. This can rise into the absurd, such as not being able to book a table at a restaurant without verifying your personal information with a dodgy B2B provider of identity services. You may have bad anecdotes of your own, but this is really a much more systematic issue in Europe than elsewhere. Europe has lots of privacy laws not because they're taking some benevolent stance against US tech, but because Europe has a genuine problem protecting their citizens' privacy on a day to day basis.