Dev's mother is the biggest chain in his feet.
She didn't let him argue or question Rajnath at hospital. She keeps reminding him of so called duties as big brother and keeps asking him to forgive Shaurya, treat him like a child etc.
Dev had once told Rajnath that he wasn't interested in joining Goenka Industries. It had taken a lot of coaxing on Rajnath's part to include him in cancer research project.
I wonder why he wants to avoid Goenka tag and lifestyle? Or was he conditioned this way?
I don't rate him as perfect SIL material because a man has to be protector also. This is where Dev is weak. He cannot sense danger in advance. He cannot shield his family. He was reckless even when he went all alone to find out Shaurya (no guards, police or bulletproof jacket). He cannot stop others from bullying him and his family.
Packing off friends to other places after nearly escaping death or trying for justice years later doesn't mean much. He is poor with personal safety also.
Dayal must be thinking Dev and Durga can be packed off to the US and live happily ever after, which, I don't think is a plausible idea. If he thinks other Goenkas can't come to US or trouble them then he is living in fool's paradise.