The lust for life and having as much fun as possible at every stage in life is a central theme in Thailand. This simply makes life more enjoyable and more pleasant. Thais love to celebrate or travel in large groups (family/friends).
The subjects of conversation generally revolve around everything which is fun. The subject of food has a particularly high priority. Conversations about personal matters do not generally take place. Deep and meaningful discussions are avoided wherever possible because there is always the risk that these could lead to a difference of opinion and that would affect the harmony in the group.
In comparison, Farangs often find it difficult to really enjoy life and the financial security which they have built up through years of hard work cannot help them. This is simply a matter of the attitude which is determined by the culture and education. Many poor Thais lead much happier lives than the perfectly backed up Farangs who have made provisions for every possible eventuality.