It’s been hard to miss the scooter startup wars opening fresh, techno-fueled rifts in Valley society in recent months. Another flavor of ride-sharing steed which sprouted seemingly overnight to clutter up sidewalks — drawing rapid-fire ire from city regulators apparently far more forgiving of traffic congestion if it’s delivered in the traditional, car-shaped capsule. Even in their best, most-groomed PR shots, the dockless carelessness of these slimline electrified scooters hums with an air of insouciance and privilege.