For extremely busy restaurants / cafe’s where people are already waiting long periods, they probably don’t want to overcomplicate things too, and increase the risk . They’d have to keep 2 different milk frothing machines, and every time a customer got sick, risk getting sued, whilst slowing down the efficiency of orders.
Whilst it might increase the number of potential customers, in practice, it might only have negatives
For extremely busy restaurants / cafe’s where people are already waiting long periods, they probably don’t want to overcomplicate things too, and increase the risk . They’d have to keep 2 different milk frothing machines, and every time a customer got sick, risk getting sued, whilst slowing down the efficiency of orders.
Whilst it might increase the number of potential customers, in practice, it might only have negatives