In a world where magic is inheritable and most people possess it, what would some of the expected economic and social roles of those without magic to be?
---Background Info Below---
The inheritance pattern is a simple matter of possessing the gene or not. Zero copies of the gene results in an inability to use magic. One copy of the gene results in the ability to use magic. Two copies of the gene results in the ability to use stronger, more varied magic. Mutations can and do occur where the gene will appear or disappear where it normally shouldn't, but the population ratios stay relatively the same at 25/50/25.
It is almost impossible for a person possessing two copies of the gene not to be aware of their magic (for a multitude of reasons), but a person with only one copy might not be aware of their magical aptitude. Alternatively, (for those possessing only a single gene) their magic might help them in mundane ways which leads them to believe they are simply more lucky than their peers. Regardless, about half of those with a single gene are aware of their ability to use magic (usually through family awareness).
A final note in the inheritance aspect of things is that while ability to use magic or not is determined by possessing the gene, the type(s) of magic that a person is inclined to is also inherited. It is entirely possible to learn other types of magic, but with much more difficulty. Thus, people possessing certain types of magic may be perceived as more genetically attractive.
A final few notes for the topic in general include...
- That those without magic are at least capable of utilizing magical items.
- Magic is well thought of and considered desirable.
- That a person's magic can become stronger with training. However, a lack of training and/or the lack of someone/something to give guidance to that training will result in weaker magical abilities.
- That those with two copies are perceived as having significantly more potential than those with only a single copy despite the actual difference being smaller (double copies are perceived as true wizards, single copies are perceived as one trick ponies).
- Magic can be used for just about anything, but magic of the grander more reality breaking variety tends to be impossible for most and difficult for the especially capable.