I’m sorry if this is a silly question, but I guess I missed this. Why is Cersei so determined to keep her sons and daughter from marrying? To keep them to herself(for the power), or willful blindness to their duty to marry and have children?
Not a silly question at all, anon.
In the case of her sons marrying, Cersei’s threatened by the “younger and more beautiful queen.” In most circumstances, the queen after Cersei would be Cersei’s daughter-in-law. All potential daughters-in-law are therefore to be feared and hated, especially since said younger and more beautiful queen is supposed to cast Cersei down and take all she holds dear. Cersei holds her children dear.
As usual with self-fulfilling prophecy, the joke is on her.
There’s also the thing where Cersei doesn’t love her children as people, but rather as things. We see it in her seriously rose-tinted glasses regarding Joffrey, in her extremely conditional affection for Tommen, in her projection of her own marriage to Robert onto Myrcella’s betrothal to Trystane. It’s not exactly about the power she could wield through a regency for her sons, though that’s a perk. It’s about the having. Margaery’s got the best line on this.
Cersei donned a look of hurt. “You wrong me, daughter. All I want—”
“—is your son, all for yourself. He will never have a wife that you don’t hate. And I am not your daughter, thank the gods. Leave me.”
- Cersei X, AFFC
Cersei’s children getting married, to anyone, leaving father and mother and cleaving unto a spouse, is the world taking Cersei’s things away from her. She’s not handling it well.