Ukuqala komgca wemveliso yeglasi edadayo kudla ngokuba semva kotshintsho lwamaxabiso akwindawo ethile, ngoko ke nangona amaxabiso ebuthathaka kodwa eqala okanye engehli, isantya sesivumelwano sokubonelela okanye kwixesha elifutshane singaphantsi kwesantya sokuwa kwemfuno, uluhlu lwezinto lusenokuqhubeka lunyuka. Kodwa ngenxa yomgca wemveliso yeglasi edadayo, sebenzisa inani elimiselweyo lonyaka elimalunga neminyaka esi-8 ukuya kweli-10, ukufikelela kwinani elimiselweyo lonyaka kufuneka kuthathe umkhuhlane, imfuno yokulandelela kunye namaxabiso abuthathaka ngakumbi kukhokelela kwisiqingatha sesibini soshishino lweglasi, ukukhawulezisa isiqingatha sokuqala senkqubela phambili yokulungisa umkhuhlane iyonke, ishedyuli yemveliso yokulungisa umkhuhlane okanye iyancipha, ukunyibilika kobungakanani bemveliso kuya kuncipha kancinci kancinci.

Lilonke, sicinga ukuba isiqingatha sesibini seglasi edadayo esitokhweni sinokuqhubeka sinyuka emva kokuba indawo yaso yangoku iphezulu kwaye iguquguqukayo kwaye kulindeleke ukuba ilandele ikamva leglasi ngaphambi kokuba imveliso iqale ukubonakala iphantsi kakhulu.