Having no public restrooms within a 15 minute walk is worse than having no public benches. Cities shouldn't be allowed to exist without either of them. Also, ground-level restaurants and supermarkets should not be allowed to reject non-customers from using them.
Bulk urine is a good source of urea/ammonia which has commercial value, especially considering the global fertilizer shortage.
These are likely good litmus tests for the distinction between a city and "people storage".