I’ve never had to get my septic cleaned or serviced in over twenty years. Flush an enzyme pack every three months, it’ll never build up to needing flushed unless required when selling one day. I’ve had to replace a well pump once, really easy one day job. I’m sure municipal water and sewage is nice but I’ve never had either, pushing fifty years old. I never realized anyone considered these things difficult or complicated, I’m an idiot and have never ran into anything I couldn’t service myself.