High predictability is why my boiler is serviced by ${largeCompany} as part of a maintenance plan. I give them some money every month and once a year they remind me it’s time for the service and I select a date and time window from those available on their website. This probably costs me more than arranging ad-hoc servicing, but I don’t want to think about who do I get to service my boiler this year, or who do I call when it stops working. Similarly I expect it costs you more to order from your local takeaway via Just Eat or Deliveroo than to deal with them direct. Perhaps the percentage of interactions people have which are highly predictable are to some extent a function of economic status.