I mostly understand it being a bad idea to learn to drive in a Porsche. The acceleration and lack of safety features is probably not the best. But for different reasons an ancient junker is probably not the best beginner car either. Nor is the cheapest car available. The best beginner car would be the safest and easiest to drive car. A Subaru Outback or maybe a Rolls Royce Phantom would be a good beginner car by my measure.I guess I see things differently than most. I do not equate the terms “entry level” and “beginner”. An entry level bass is not necessarily a beginner bass. It is the entry level to the brand, not the instrument.
An entry level Alembic (Epic or Orion) is not a beginner bass. It is simply the lowest priced instrument in their portfolio. An SX short scale might be a better example of a beginner bass. Likewise, a Ken Smith Burner or a Sadowsky Metro might be entry level for those brands, but are definitely not beginner basses.
A Porsche Cayman is an entry level Porsche. Definitely not a car for a new driver to learn on. As long as we take the position of entry level = beginner, the idea of cheap, low quality will trail along to mis-categorize the perception of “entry level” instruments.
I think the idea of a beginner bass is a made up one to sell cheap instruments. Some of these basses are good quality, and good for beginner and expert alike. Others are tough to play for anyone. I'm not sure what features an Alembic has that make it a bad beginner instrument.
Maybe it is best to think what makes a bad beginner instrument. I would start the list with:
1) More than 6 strings
2) Poor craftsmanship (unfinished frets, unleveled frets, warped neck)
3) Complicated electronic circuits (eg Bc Rich Moser Circuits)
I do not know why price would come into play with a performer's level of skill. It seems strange to imply a beginner couldn't play or appreciate a Fodera, Wal, Sadowsky, etc. Price comes down to your pocket book only. If you make $40,000 a year and have 3 kids, your bass will look different than if you make $40,000 a month and have no kids. Skill has nothing to do with it.
The issue with inexpensive car versus expensive car is not the inadequacy of the car, but the inadequacy of the driver and the much greater likelihood of damage to expensive property. I used the Porsche analogy because putting too much power in the hands of a beginner is dangerous on a number of levels. I have a 455 hp Camaro and a 153 hp Chevrolet Cruze. Guess which one I let my kids borrow. They're not inexperienced drivers, but the opportunity to do something stupid is dramatically higher in the Camaro, and the Cruze runs errands just fine.