SC+PR组合和PR单独买房的ABSD是一样的所以为什么不直接PR自己买呢？还省了decouple。加上SC有什么好处？

是根据PR，不是SCFor PRs, whether or not they're buying their first property on their own or jointly with a Singapore Citizen (SC), they'll need to pay 5% ABSD. So if you're a Singaporean planning to buy a house with a PR, and this is the first property for both of you, you'll need to pay the 5% ABSD