Riding directly alongside another vehicle is:

Question

Riding directly alongside another vehicle is dangerous both because you may be in the vehicle's blind spot, and because the vehicle may block your route of escape from additional hazards.

Accepted Answer

Discouraged because you may be in the other vehicle’s blind spot.

Answer

Encouraged to allow for drafting.

Answer

Encouraged to allow other drivers to see you better.

Answer

Discouraged because the other vehicle may think you are trying to race.