User blog comment:Pigzillion/How come Killua learnt Nen so late?/@comment-4828844-20150809015327/@comment-11310718-20150820105426

Do not compare Kalluto's chance to enter phantom troupe to Killua, Killua could've easily join phantom troupe should he desire to. Remember that nobunaga recommended them (Kil and Gon) to Chrollo.