Mrs. Qin let Old Mrs. Luo talk about this matter, after all, she is Luo Anguo's biological mother, and her words are definitely more effective than her sister-in-law's.
This matter probably has to be spoken about carefully. The couple, one blind and one crippled, might be planning to wait until Luo Anping grows up to marry off Beisitian and collect a large betrothal gift. In that case, they probably won't agree easily.
This is also why Mrs. Qin let Old Mrs. Luo speak on their behalf.
