As long as they are physical controls that a person can find and operate while focusing on where they're trying to go. Levers are familiar to hundreds of millio

As long as they are physical controls that a person can find and operate while focusing on where they're trying to go. Levers are familiar to hundreds of millions, so that's a safe bet. Changing it without good reason is unwise. Using touch screens that require visual inspection is irresponsible.