Hi - Traveling to Singapore and Malaysia with DS who is nearly 4yos. I expect we will need to use taxis when over there. I dont want to lung the car seat over with us (do taxis over there even have anchor point to strap the car seat in?) but he is too small to be able to properly use a normal sash seat belt. Are there any other options that are easily transportable?

Spotted the RideSafer but think this is only available in the US.
Is there anything similar out there available in Australia?

What have other mum's done when traveling in asia? Very much appreciate any tips/advice.