from what i've seen and heard, ABS makes worse drivers.
"oh i could stop, i have ABS"...
not a good way of thinkin...
and i spun my ute around when a few years younger..., thought oh crap im gunna crash... jump on brakes, abs will help...
all 4 brakes locked, half because i was about 90 degrees to the direction of travel
and abs doesnt work when all 4 are locked, it thinks its stopped... and b4 i can release brakes, i hit gutted and kaboom, $8000 damage...
ok, yes i know i was rooted anyway... but just food for thought.
as for the bike thing?
tough call, how often do you safely lock brakes on a bike?
and how often would you go "dam! i wish i could leave that wheel locked"