17yo tourist alone in Thailand on 30days stamp - is it possible for him to extend this stamp in CW IO by himself, without parents?
TLDR : Answer Summary
A 17-year-old tourist in Thailand can apply for a 30-day extension of their visa-exempt stamp by themselves, provided they are eligible based on their nationality. They should visit the IT Square Laksi Plaza, as it is currently the temporary office for Bangkok Immigration, to process the extension.