I know very well trans women use women's toilets. Its a false claim that the GRA will let men into the ladies,
Any male looking person in the ladies will rightfully be challenged both now and after self id GRA. It wont be a crime to do so.
it will carry on just as it is now and has been for years. no need for third spaces, no need for trans women to use the gents.
Go in the facility, use if for what it was designed for, mind you own business, be sensible and respectful of other users. its not hard is it, we have been doing it for years.