Ongoti bezokuvikela imvelo baveze ukuthi nakuba izikhwama ezingavikeleki emvelweni zilethela abantu abaningi ukunethezeka, ngakolunye uhlangothi, zingcolisa imvelo.Ezinye izikhwama ezingezona ezokuvikela imvelo azikwazi ukusetshenziselwa ukupakisha ukudla, okuzodala umonakalo omkhulu empilweni yabantu.Ongoti bezempilo baveze ukuthi ukudla, ikakhulukazi okuphekiwe, kuvame ukonakala ngemuva kokupakishwa ezikhwameni ezingavikelekile.Ngemva kokuba abantu sebedle ukudla okonakele kangako, bavame ukuhlanza, isifo sohudo nezinye izimpawu ezinoshevu wokudla.Ngaphezu kwalokho, ipulasitiki ngokwayo izokhipha amagesi ayingozi.Ngenxa yokuqoqwa kwesikhathi eside esikhwameni esivaliwe, ukugxila kuyanda ngokukhula kwesikhathi sokuvala, okuholela emazingeni ahlukene okungcola kokudla esikhwameni, ikakhulukazi umthelela empilweni yezingane kanye nentuthuko.