My thoughts are it’s not as bad as you think. Proper Bolognese sauce takes hours to cook, needs a good simmer and requires wine…. also compare this with how it tells you to cook the a bolognese on the side of a jar of the sauce. Last one I read was brown mince, add sauce, bring sauce to boil, serve….ummm lovely chewy mince
If they teach them to brown the mince and onions then add sauce and maybe add some veg and let it have a half decent 20-30 mins simmer, then that’s going to be pretty reasonable result. Bolognese using a jar sauce was the first thing I learnt to ‘cook’. I now cook pretty much everything from scratch… including doing Bolognese properly
Also the amount of salt in the sauce is stated on the side, along with the rest of the ingredients. I think you can do much worse than pre-made Bolognese sauce