Should there be red balls/(bollards) in front of the doors too?

Depends on store build and front design.

An older store I used to work at has them off to the sides. As the front entrance transitions onto a short sidewalk going into the parking lot lane.
 
So does ours. Not right in front of them, but out closer to the driving lane that runs across the front of the store, maybe 30' from the doors. 3 or so per side.
 
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