How did they deal with extramarital affairs - particularly if it is the head of the family who is indulging in it? Well if the lady love of equal or higher socioeconomic status then the child was bundled to a childless relative so the ladies reputation was untarnished. Or the concerned lady lived in the out-house, as a constant torment to the lady of the house. If the lady love was of a lower socioeconomic status she was discreetly paid off so that the offspring and she lived in comfort. The out-house or a separate establishment off-city was another solution.
1. AarYa going against SP's orders of buying off Ak-Ish and Radha. Instead AarYa have decided to welcome and accept Ak-Ish as the rightful son and DIL of SM. Now that slot has to be gradually granted by the others to them!
2. SP going against social norms and allowing them entry to SM. He voiced his resentment at the unfolding situation by refusing to receive Ak-Ish.
3. Vidhi, Bua, Pankaj, Prateek's resentment and concern the family unity will be seriously tested, and peace may be a illusion.
4. G3's shock at Radha's entry. Radha's living quarters and that of Yash (or Akash?) should be outside ' but given the complication created by the baby swap this issue was difficult to resolve and left unaddressed by SP.
5. All in all IMO AarYa have taken a big risk and put themselves in the line of fire. They are certainly not going to be forgiven that easily.
What's next? Fireworks within SM I presume!! Neither Ak-Ish or Radha are familiar with the joint-family lifestyle nor feel any affection towards SM members (except Radha towards AarYa) so we are in for some tumultuous episodes while bridges are built and affection developed!! Radha's place will need to be redefined and ultimately decided by SP!