In hindsight Bran was wrong to split with Rickon. I know he was a little kid and he didn’t know any better but Rickon would’ve been much much safer traveling with a 7 foot tall giant, Meera and Jojen. They should’ve just told Osha to kick rocks if she was scared to go North. By doing this, Rickon would’ve been there when they met Sam and Gilly so he could’ve finally went to Castle Black with them to be protected by Jon or he would’ve been there when Craster’s Keep was being taken back by Jon and he could’ve stayed behind to find his brother while the others went North. Bran basically sent his baby brother off to fend off the savages alone with one wilding woman