Final answer:
Bhutan regulates tourism to maintain its environmental health and cultural integrity, sustainably aligning with its Gross National Happiness philosophy.
Step-by-step explanation:
Bhutan regulates tourism to protect its unique culture and pristine environment. As a small country with an economy primarily based on forestry and agriculture, it is essential for Bhutan to maintain the environmental health and cultural integrity that could be compromised by unregulated tourism. Large daily fees and strict requirements for tourists are in place to control the number of visitors, ensuring that tourism is sustainable and aligns with the country's commitment to Gross National Happiness, rather than simply economic growth. These regulations also help prevent the environmental degradation experienced by Bhutan's neighbors, which is often exacerbated by the demands of tourism and lack of infrastructure development.