How can cyclists effectively utilize existing infrastructure to reduce their reliance on public transportation, and what role do you think bike-share programs, bike lanes, and other cycling-friendly initiatives play in making this shift possible, especially in areas where public transportation is already well-established and convenient? What are some potential drawbacks or challenges to consider when attempting to reduce reliance on public transportation through cycling, and how can these be mitigated through infrastructure design, education, and policy changes? Are there any real-world examples of cities or communities that have successfully implemented cycling-friendly initiatives to reduce reliance on public transportation, and what can be learned from their experiences? How do you think the perceived safety and convenience of cycling compare to public transportation in the eyes of commuters, and what can be done to address any perceived disparities? Can reducing reliance on public transportation through cycling have any negative impacts on the environment or urban planning, such as increased congestion or decreased air quality, and if so, how can these be minimized?