Irangi ryintoki ryacu rikozwe mubikoresho bidafite uburozi kandi bifite umutekano, byemeza ko abana bashobora kurema neza. Ubundi gushushanya urutoki nuburyo butaziguye bwo kwerekana ubuhanzi butunganye kubana bato. Bashobora gushira intoki zabo mu irangi hanyuma bagakora ku mpapuro, zibafasha kuvuga mu bwisanzure ibitekerezo byabo n'amarangamutima yabo nta mbogamizi y'ibikoresho by'ubuhanzi gakondo bibatera guhanga.