India, Dec. 4 -- Want to get the average Indian Mummy-Papa's heads to whip around three times, soap-opera style: Kya? Kya? Kyaaa? Try getting their average 20-something kid to announce that they want to move out of the family home but live in the same city. Or set any sort of adult-to-adult boundary.

"Many Indian parents act out of emotion, not reason," says psychotherapist Shreya Aras. And yet, for newly minted adults reframing the family dynamic, it's rarely a fair fight. We've picked three thorny 20-something milestones, and how to overcome them. Kya? Kya? Kyaaa? Read on.

The moving-out chat. Grishma Dewani, 28, a food stylist in Mumbai, moved out of her parental home three months ago. She told her mother, the more understanding pare...