[watchfirst9]

Aiya, all this self justification. Scare and selfish dun wanna jab is the bottom line.
If anymore wave comes, I hope there is enough place for those who wanna jab but cannot come first, next those jabbed ones. 
Those who can but won't … last in line.

It is responsibilities of the govt to search for better solutions.
Since it is not perfect, and not without side effects. 

If not some persistence, Sg govt will only stick to one option,
https://scitechdaily.com/virus-mimicking...e-effects/

internasal can also make vaccine safer, therefore more people can take safely.