Chalo said:
In the USA, bicyclists are entitled to the lane, and usually prohibited from the sidewalk. Some assert their right to the lane and others don't, but the right exists either way.
You like to assert this despite a lack of facts. First, Cyclists "entitlement" to the lane is a matter of state and local laws, there is no "USA" generalization that applies. Second, this is false for the very city and state in which you live. Texas does not allow for the unconditional right to the lane by cyclists. Lastly, cyclists aren't prohibited from using the sidewalks where you live either.
Relevant Texas code regarding "right to the lane":
Sec. 551.103. OPERATION ON ROADWAY.
(a) Except as provided by Subsection (b),
a person operating a bicycle on a roadway who is moving slower than the other traffic on the roadway shall ride as near as practicable to the right curb or edge of the roadway, unless:
(1) the person is passing another vehicle moving in the same direction;
(2) the person is preparing to turn left at an intersection or onto a private road or driveway;
(3) a condition on or of the roadway, including a fixed or moving object, parked or moving vehicle, pedestrian, animal, or surface hazard prevents the person from safely riding next to the right curb or edge of the roadway; or
(4) the person is operating a bicycle in an outside lane that is:
(A) less than 14 feet in width and does not have a designated bicycle lane adjacent to that lane; or
(B) too narrow for a bicycle and a motor vehicle to safely travel side by side.
(b) A person operating a bicycle on a one-way roadway with two or more marked traffic lanes may ride as near as practicable to the left curb or edge of the roadway.
(c) Persons operating bicycles on a roadway may ride two abreast. Persons riding two abreast on a laned roadway shall ride in a single lane. Persons riding two abreast may not impede the normal and reasonable flow of traffic on the roadway. Persons may not ride more than two abreast unless they are riding on a part of a roadway set aside for the exclusive operation of bicycles.
In Texas, the right to the lane is conditional based on specific safety concerns or a need to make a turn; cyclists are NOT simply "entitled to the lane". Perhaps, Chalo, you should learn the laws for cyclists where you live before you tell everyone else how it is.