It’s highly likely that anyone who buys your home won’t have a clue how a sprinkler system works, has never changed their own car oil, calls the repair person when something breaks and has never touch a lawn mower.
If they do change their own oil, repair their own appliances, mow their own lawn, have rebuilt their own transmission and have installed a 16 zone irrigation system like I have, they’ll be able to figure it out themselves. Otherwise, they’ll just call someone.
Once the papers are signed, it’s their house and not your problem.