Are Chinese Singaporeans that terrible at speaking mandarin?

Chinese singaporean dont know how to ask in Chinese, somehow service worker at fault

News article:

https://theindependent.sg/woman-berates-ntuc-fairprices-staff-at-the-fish-counter-for-not-being-able-to-speak-english/

Reddit thread:

https://old.reddit.com/r/singapore/comments/120b89k/woman_berates_ntuc_fairprices_staff_at_the_fish/

I unironically hate /r/singapore users so much it's unreal when looking at their responses

Are Singaporeans that terrible at speaking mother tongue?

Why can't they just admit they suck at it.

Another similar incident:

https://www.asiaone.com/singapore/i-dont-know-how-read-chinese-rider-explains-delivery-delays-happen-because-some-cant-read?fbclid=IwAR2ifrSbW_zlr_FgL6bIhPwuTqNkjnosGtkUPijVMH-7qqV1ODD15iaeHTo#Echobox=1680236845

Reddit thread:

https://old.reddit.com/r/singapore/comments/127hlld/i_dont_know_how_to_read_chinese_rider_explains/ (Comments locked btw)

Maybe I should practice more on my mother tongue, no its the stall owners who should learn a new language entirely

I would've ranted about how much I hate these redditors but I need yall opinions on these. Are these ppl actually Singaporeans or foreigners larping as one after living here for like a year. Hardwarezone unironically feels more singaporean that whatever the ang mohs are doing on the singapore sub

Edit: Actual Singaporeans in /r/askSingapore btw

https://old.reddit.com/r/askSingapore/comments/121m4uw/any_chinese_singaporeans_here_that_cant_or_can/