In a previous question I asked about a race that is extremely close to humans except for the fact that they physically and mentally (as in the acuity of the brain) stop aging somewhere between the ages of 25 and 35 (depending on environment and genetics, like human puberty). In the end they have roughly equivalent lifespans to humans.
If we assume that we wave our hands and impose on this species a society much like the modern cultures of the first-world of Earth (non-specific, you may specify in your answer if you feel it's important to do so), how would this affect professions (and the professionals who fulfill these professions and their respective careers) in both the short term (<5 years), medium term (<25 years), and long term (<100 years).
To clarify, these individuals stop aging. They are still capable of the same mental and emotional growth of humans but their body physically stops aging (including the brain). In short you wouldn't be able to tell the difference between a 25-35 year old and an 80 year old.
Specifically, for point of comparison, focusing on the following professional groups:
- High-skilled labor, such as doctors, lawyers, and researchers
- Political professionals (governors, mayors, representatives)
- Unskilled labor, such as factory workers or fast food servers
- Military personnel
To clarify, I'm not concerned with other effects (for example, we're hand-waving the social effects of suddenly there no longer being aged members within the society and the panic that might cause). The scope is exclusively the professions, their professionals, and the careers of the professionals, and how these topics might affect society.