Rena Inoue is barely human though. She has been skating forever, does throw triple axels, and never gets injured. She also was already skating pairs internationally at 12 years old... I think continuing to do something you've always been good at into your mid to late 20s/early 30s is much more feasible than learning a new discipline at that age (and sticking with it if success doesn't come relatively fast). If Sasha ever had the longevity of Rena, that would really be something... Pair skaters like Inoue are obviously a very rare breed.