(A) Minors 14 years of age or less may be permitted to ride bicycles on sidewalks where the buildings do not abut the paved portion of the sidewalk; provided that, when approaching a pedestrian or other person lawfully using the sidewalk, any such minor riding on the sidewalk shall dismount before his bicycle is within 25 feet of the pedestrian and shall continue dismounted until he shall have passed the pedestrian or other person.
(B) Any violation of this section shall be punishable by a fine of not less than $2 nor more than $100 and costs.
('73 Code, § 72.06)