How developed is public transportation in Thailand's major cities?

Public transportation in Thailand's major cities, such as Bangkok, is considered to be quite advanced and diverse. The correct answer highlights this aspect accurately. Major urban areas offer a variety of transportation options, including buses, taxis, tuk-tuks, and an extensive BTS Skytrain and MRT subway system, which significantly ease urban mobility.

In contrast, labeling it as poorly developed overlooks the active efforts by the Thai government to enhance and expand public transportation. While some regions may experience congestion and challenges in service availability, especially in lesser-developed areas or during peak hours, major cities do offer a framework that supports public transit efficiently. Thus, asserting that it's poorly developed does not reflect the overall state of public transportation in urban Thailand, where considerable infrastructure exists.