I have some questions as well. Is Chai Yai's mother also a royal member? I think a fan mentioned that Chai Yai speaks honorifics to his father, but not to his mother? It seems ironic that his mother loathes so much the foreign things and foreign people, but I guess she is proud to have her son study abroad. I guess it'll be natural for someone who receives education in a foreign country/culture and gets high scores overseas to think and act at least somewhat as a foreigner does?
And it confuses me why Chai Yai says taking Maan Kaew to see the ocean will bring his mother good fortune? And Tua says Ying Thae looks happy "in all three worlds". Is that also a Thai or English idiom?
The lakorn doesn't come out to clarify or point out why there are differences in Tan Chai's difference of honorifics when he addresses his Father versus his Mother, but yes, based on speech, there is a difference.
For example:
Tan Chai addresses his Father as: Tan Pa or Sadet Pa, the Tan and Sadet hold royal weight/title. So I translate it shortly as Father.
Tan Chai simply addresses his Mom as Mae. He doesn't use Tan or Sadet/Det AND he doesn't even use Khun Mae. He just says Mae, so I translate that as just Mom, not even Mother. Lol
When the Mom threatens Tan Chai, she always only uses the Father's reputation, ancestral family, and dignity as reasons. She never refers to her own.
From watching this version, Ying Thae is probably more powerful and higher or closer to the King than Tan Chai and his family, so that's why the Mom really wants Ying Thae as part of their family and if this engagement is called off, Tan Chai's family will suffer. Plus, when Ying Thae goes to visit the Grandmother, even the Grandmother calls her Tan Ying and even the Mom calls her Tan Ying, not just Ying Thae.
The Mom only wanted Tan Chai to attend overseas studies because that was the norm for elites and royalty. It was a status requirement, not necessarily her decision. She's still very backwards in her mentality. I mean, what do you expect from someone is educated whether it's domestic or internationally, right? It's true, reading and education gives you wings to fly and Tan Chai doesn't like traditional controlling.
It's good fortune if you do good deeds or merits for someone. Maan Kaew was going to go to Sichang no matter what, but Tan Chai just wanted to make his Mom feel more at ease and inserted that in. So yes, if Maan Kaew has never seen the ocean and taking her out of the goodness of the Mom's heart, which wasn't, but yeah, that would be creating blessings for yourself.
The three worlds is a Thai idiom. Ugh, totally forgot what they refer to. When I come across it, I'll explain it later.