Cheaper than motor vehicles but probably not needed for much crowd control. Definitely no good in high speed pursuits unles the perp is on crutches or missing a leg & hopping.
With a top speed of thirty miles an hour, high-speed chases are out of the question. They would however be quite intimidating in tense situations. I wouldn't argue with those horns.
Don't forget a much wider perspective of an area from an elevated position when saddled up.
@Ryo1 Something that I always enjoyed when driving my vardi - a converted Bedford bus.