Being a gamer, we are forced to suspend a lot of belief in our passion. I guess I never really questioned just how ridiculous the stealth mechanic is in Bethesda games until Mike Manor shoved it in my face!
That said, I felt like I was discovered pick pocketing wayyyyy more in Fallout 4 than in previous installments. Oh well, I'm not complaining. The day Fallout stops letting me put live grenades in random strangers pockets is the day it stops being fun!