Cartridges and old man

No that is not normal.I doubt very much that the children will always want to take over.

I cannot imagine that many kids today would like to hand wind cartridge coils as a living.

Stradivarius unfortunately did not have continuation of his family business.

Stradivarius's greatest contribution to us, was not his instruments. I suspect there are none of his instruments that haven't been worked on by present day luthiers. What he did was to codify the measurements of stringed instruments, so that today's violins, violas, cellos, that conform to those measurements are called Stradivarius. His name stamped into poor quality instruments that people find in their attic are prevalent. I am a pro violinist and can tell you the Strads that the Master built are not different from fine instruments from the hands of other top luthiers.