But just because girl can jump quads at 12 does not mean she is mentally ready to be competing with adults, be out there...
Look at what happened to Oksana Baiul. Sure, she could skate so pretty and outskate adults, but she should be with her however incomplete family, not in the big big world, at her age. And now imagine 12 years old could compete with adults, because they can jump them quads and do pretzel spins. Could they all handle the pressure, the criticism, the adult world?
Just wait for some grasshoppers and stick insects from DPKR and CHN to enter the flea circus to compete with those Russians for the upper tier in figure skating, LOL.
As far as we know, all the current very young and young Russian quadsters and trikselistas come from normal families, with well grounded parents, some of which have been or are still in sports. The days of orphans and poor children from even poorer single parent situations being 'taken care of' by the state (read USSR here) are long past and will never return.
Notice how the Moscow rinks that are now in power shield their young proteges? Notice how none of these kids waste their time on useless to downright dangerous social media? When a still active skater starts to do daily live streams, you know he or she is on the way out.
Still the long term health effects of heavy acrobatic or athletic elements on skaters aren't well know. Spinal column, pelvis, hip, knee, ankle problems -caused by jumping quads and triksels- haven't been diagnosed yet. The population is simply too small, but the skaters from Khrustalniy are carefully monitored and checked medically at every Novogorsk camp, and probably in between too, using the Sambo-70 facilities and doctors available to them. Their trainers don't take unnecessary risks with their working Capital, with a Capital C.
When properly trained, i.e. using padded pants and/or the harness until the ultra-si is stable and confident, when the muscles, joints and ligaments are thoroughly adapted to the loads and forces, when the athlete concerned looks after his/her weight, has the right mindset and concentration not to 'chuck' her ultra-si's there are little problems.
Plus, why is nobody criticising Liu or her parents/trainers/directors/federation? Why is all the negative attention directed to skaters from this one rink?