The government should simply mandate that all restaurants, supermarkets, event venues, etc. above a certain size should be required to have at least a certain n

The government should simply mandate that all restaurants, supermarkets, event venues, etc. above a certain size should be required to have at least a certain number of free public toilets. Otherwise, the more stores that withdraw from offering free public toilets, the more burden it places on everyone else. If it causes a slight increase in labor cost, at least it the cost will be borne equally by all, and benefit will be borne most by the most vulnerable.