I am seeing more Malay kids speaking to their parents in English when out shopping.

In Japan or Korea, it's going to be super difficult to live there if you don't know their language, especially if it is outside of the main city.

China is even harder if it is not the key cities and even if it is, you might still struggle. Same goes for Vietnam.

In Malaysia, how hard is it to live here without knowing any BM?

Probably too ignorant or living with own kind for generations.

My tire mechanic also same previously. Zero BM. I told to brush up and learn as it might be good for business. Myself also spoke BM with him all the time. Eventually, he gotten so good at it and received more businesses from Malay customers. Now he can joked easily with them to some sales.

those type i know, somemore speaking american slang. that's why there's a perception that BM is B40 language, it's not cina who caused that perception 

Evan bangla can cakap bahasa within 3 months, even though it is bahasa mangla, at least can understand

Ya reality is you living in Malaysia, not prc not toc Taiwan. The Malays are now 80+% population, you sure you don't want to tap into that market? Among malays there's always a perception that Chinese mechanics are better and more skilled, but just worry get slaughter.

Some expats have been living in Malaysia relying solely on English

that's why they able to steal your job and your awek 
ended up they got no difference than those that can only speak malay

Those living in balakong cheras are doing well without knowing BM..was in Balakong ystrday..was like a mini china there..

Only matter of time curi Amoi pula? Minachi also?

Boleh je .tapi Jangan mintak macam2 la .

Later kena sideline boleh cry perpaduan , kami suda duduk sini lama .

Those Myanmar living in Selayang and other parts of the Peninsula Malaysia also doing fine?
Same too are those in Rohingya Kampungs?

yea if they can speak chinese than there might be possibility

but chances are much lower maybe because their mindset different with awek