Izinwele zifana nehlathi elinezihlahla ezikhula iminyaka emi-2 kuya kweyisi-7, ziphile bese ziyafa futhi ziwe. Ukulahlekelwa izinwele kuyinto yemvelo, ingxenye yomjikelezo wempilo yezinwele. Ngakho-ke kuyinto evamile ukulahlekelwa izinwele ezingaba ngu-50 ngosuku. Ngale kwezinwele ezingama-50 kuye kweziyi-100, ukulahleka kwezinwele kuthathwa njengokugula: ukwelashwa noma ukuthathwa kwezithako zokudla kungacatshangelwa.

Kodwa-ke, ngezikhathi ezithile zonyaka, futhi ikakhulukazi entwasahlobo nasekwindla, lesi simo esingokwemvelo sokulahlekelwa singabaluleka kakhulu, futhi sifinyelele embundwini wezinwele ezingu-50 kuya kwezingu-100 ngosuku. Lokhu ukulahlekelwa izinwele zesizini.

Njengezihlahla, izinwele zethu ziyazwela ekushintsheni kwemvelo: ukusuka ehlobo kuya ebusika, futhi okuphambene nalokho, yizikhathi zokushintsha okukhulu kwesimo sezulu futhi ngenxa yalokho kumswakama, ukukhanya kwelanga, izinga lokushisa ngaphandle ... Lezi zinguquko zinethonya ijubane nesivinini sokuvuselela izinwele. umjikelezo, ongabese wehla ngamanani amakhulu.

Ngakho-ke ukuwa kubhekwa okuthinta zonke izinwele kodwa okunomthelela omncane kumthamo wezinwele zizonke. Lokhu kuwa kuthatha isikhathi esingangenyanga eyodwa kuya kwezimbili. Ngaphandle kwalokho, kuyadingeka ukubonisana ukuze unqume ukuthi ayikho yini enye imbangela yokulahlekelwa izinwele.