In Singapore, one needs to be only 18 to hold a Class 2 and 3 driving license, 21 years old to hold a bus vocational license and heavy vehicle driving license, and soon, only 2 years driving experience required to go for private hire vocational license. I think that for new driving license holders, be it local or foreigners, the first year is very crucial and they are still very new to the traffic conditions and laws here, hence they are very unfamiliar and unconfident at times, this is what resulted in an accident.
So I suggest that new license or newly converted license holders have to go through more orientation and training programme to ensure safety of themselves and other road users. And for those young or new heavy vehicle and vocational license holders, send them for a monthly evaluation, ensure they know the safety procedures of it and also passengers safety, make train them with this for at least a year before allowing them to hold the vocational license. Most accidents here are cussed by young, inexperienced and worse still, foreign drivers.