Umgca wemveliso yeglasi edadayo uqala ngesiqhelo ushiyeka emva kotshintsho lwexabiso lendawo, ke ngelixa amaxabiso ebuthathaka kodwa eqala okanye engahlanga, isantya sekhontrakthi yonikezelo okanye kwixesha elifutshane singaphantsi kwesantya sokuwa kwemfuno, uluhlu lwempahla kusenokwenzeka ukuba luqhubeke ukuhamba. phezulu. Kodwa ngenxa yomgca wemveliso yeglasi edadayo, sebenzisa inani elimiselweyo lonyaka malunga ne-8 ukuya kwi-10 leminyaka, ukufikelela kwinani elimiselweyo lonyaka kufuneka lithathe umkhuhlane, imfuno yokulandela kunye namaxabiso buthathaka ngakumbi ukukhokelela kwisiqingatha sesibini seglasi. ishishini, ukukhawulezisa isiqingatha sokuqala senkqubela phambili yokulungiswa okubandayo ngokubanzi, ishedyuli yokulungiswa kwemveliso ebandayo okanye ukucotha, ukunyibilika kubungakanani bemveliso iya kuhla ngokuthe ngcembe.

Ngokubanzi, sicinga ukuba isiqingatha sesibini seglasi edadayo esitokhweni kusenokwenzeka ukuba siqhubeke sinyuka emva kwendawo yesikhundla sazo siphezulu kwaye siguquguqukayo kwaye kulindeleke ukuba silandele ikamva leglasi ngaphambi kokuba imveliso iqale ibonakale ijongeka phantsi.