No one is glorifying child marriage here.What we are saying is that by what relation will Sumati and Bondita stay with the RCs? Even though they are powerful, they, especially Kaka, are bound by the Society as well as relations. So even if Sumati and Bondita live with them (which will not happen as Kaka is conservative) the society won't say a word to the RCs but both Sumati and Bondita alone will bear the brunt of the society's taunts. What will happen then? How will Bondita have a ujjwal bhavishya even if Anirudh sponsors her? Won't they question his intentions? You are looking at the show from the point of view of the 21st century, not the actual time period. So for Bondita's desire to be a Barrister, there should exist some relation between her and Anirudh. Now what that relation will be, depends on the makers.