I tried some scanning on a Plustek 8300, which is supposed to be the fastest. The process is still extremely manual/slow and I don't think it's practical on a large scale. Many families who owned cameras in the 60s-70s-80s-90s will have potentially thousands of negatives to scan, but I don't see a solution that will automate that digitalization process.
Software could also use some improvement. Automating batch correction and clean up should be easier, IMO.