Really? I mean, if you're at an indoor venue like a Walmart or a museum, sure, but I can vouch for California being an extremely painful place to take a long walk across town. In SF every goddamn toilet in the Richmond district, Sunset district, Noe valley, Daly City, and everywhere outside the tourist hotspots are "customers only".

In LA it's even worse. Miles of streets even in the poshest neighborhoods with zero toilets. Once had to ask my GF to get access to a restaurant toilet and secretly let me in because if you're male they're usually for "customers only" but if you're female you get to use them.