Nah, she's even more ruthless. She's telling him that if he helps with chores, their parents might reward him with flowers to give. This allows her to get all of the money for free without having to do anything.
Well, first off, this is based in China as this is a manhua. The reason the doctors don’t tell them is because how Chinese families prefer sons over daughters. If they knew beforehand, they might do something drastic especially when China limited Chinese families to only one child per family.