So much tax relief in Singapore for Singaporean

Sometimes I wonder why Singaporeans complain?

There are so much relief to their personal income tax

1. Earn income relief
2. CPF relief
3. CPF voluntary contribution relief
4. Parenthood tax rebate if your child is Singaporean
5. Child relief
6. Maid levy relief if you have a maid for woman with child or old folks to care
7. Working mother child relief for woman if your child is Singaporean
8. Parent relief

And finally if the government is generous a one time rebate of the final income tax.

I wonder if there is any tax to be paid at all? No wonder people can afford to go holiday