When politics dictates what must come with bikes................
Remember back to the mid 1970's when DOT tried to mandate safety features? Some of the forward leaning suggestions were: 360 degree ring of flashing lights, a 5 foot high light pole mounted to the rear of the bike, bicycle style flag that must remain erect at highway speeds (then 55mph), TRAINING WHEELS, seat belts, roll cages, orange or yellow riding gear, max speed of 35 mph....The only suggestion that stuck was the 80 mph speedometer. Eventually the whole exercise was discontinued after even the administration saw it as an expensive, embarrassing clown show.
I prefer to purchase what I think is appropriate, not what someone who has never ridden thinks is a cool idea, or what politically connected gadget salesmen want legislated.
Sorry...no wiper.