Helping a friend out, who is travelling with me to Thailand with his family.
His children have their documents for their education visa ready, enrolling in a primary and senior school. For the parents do they need to apply for a 'non immigrant visa' entitled - ''Visiting or staying with applicant's family resided in Thailand (more than 60 days)" ?
I know this used to come under 'O Visa' but the new e-visa website has changed the wording slightly.
TLDR : Answer Summary
Parents accompanying children with educational visas should apply for a Non-Immigrant O visa, specifically for visiting or staying with family in Thailand. To qualify for a long-term visa, they must provide proof of funds, such as having 500,000 baht in a Thai bank account for at least 30 days.