Unsure did not say TailsK couldn't go wherever he wanted. What he said was that if TailsK truly felt that those alliances would be the best ones for his members to join upon his alliance's disbandment, it'd make sense for him to join them himself. Even though he's disbanding his alliance, by suggesting his members join whatever alliance upon disbandment, he's exercising what leadership he has left. The best leaders lead by example. QED.