Like the drug laws, dress code laws, and so on, another one of the legion of bullshit laws used to harass citizens. Just one more reason to "check ID", which leads to many more "crimes" to get the charged into the court system and squeeze even more money from them. They want to get you on parole or into the prison system bad.

Think of it as another tax, like interest rates.

A lot of businesses already deny any bathroom access in the USA, even to paying customers; they don't care. This law will decrease public bathroom access for all unless UK government already dictates public access to business bathrooms.