My 2017 Ford Fusion Hybrid Platinum (supposedly) has "Pedestrian Detection". I say supposedly because I haven't seen evidence it is there. I would assume the heads-up display row of LED's with the special "impending collision" tone occurs if the kid goes after her ball in front of me..
The Pre-Collision Assist system is active at speeds above approximately 3 mph (5 km/h) and pedestrian detection is active at speeds up to 50 mph
I have had the pre-collision alarm go off several times in heavy traffic (and an equal number of times in the city with people turning into their driveway at 20MPH in front of me without braking). I enjoyed the sound of pre-charged brakes once (unsettling sound).
(p.s. Don't forget to watch Fuse #22 ("Pedestrian sounder") -- someone's life may depend on it!)
(Which begs the question -- does the vehicle let me know Fuse #22 is blown?
If so, what fuse makes sure the fuse sensor is working.. )