@aldol16 raises the issue about job security. Depending on which job you have, you will likely attend seminars or meet associates from other companies in several meetings. Chances are in some of these encounters that you will be able to use these opportunities to show your value or what type of work experience you have. This entire process is part of networking and enables you to have contact information for you to get connected into competitors or other contractors. Doing this in addition to being competent at your job, being able to attract new clients, and asking for favors at reasonable times should give you enough peace of mind that you shouldn't have to be afraid of potentially being fired. I always keep an updated resume and try to invest in a new skill set on a month to month basis in order to create independent growth for myself regardless of what happens at work. Someone could tell me I'm horrible at my job and I'm fired if I don't get them what they want next time, however if I know I did my best then I can take it constructively because
my job isn't my sole investment.
I would strongly suggest that people look into
realistic Plan B options if they are dissatisfied with their current situation, current pay, or other factors involving the work place. When I negotiate, my employers have understood that I only request a raise because a competitor is willing to pay for it. I'm doing them a favor by requesting a match price. That's how you create value for yourself and I don't think that is a skill set that a lot of medical schools would be directly interested in, however when you get used to selling yourself as a commodity it makes interviews much easier to facilitate.
The issue is that the job market can be a high friction place where you can be fired. At will employment means that employers can fire you at any time they feel you haven't kept up your commitment with them. However, you only have yourself to blame if you are in your 20s and you wake up in cold sweats because you are afraid of losing your job. Being in your 20s with any experience is highly desirable, even with one year of experience you should begin looking at how to branch out and increase your own capital. If you think that it gets easier when you're in your 30s, 40s, or 50s then you're naive. It's when you get older that you should be considered about vertical career promotion e.g. escalating your career within the same company. Ageism isn't so much an issue in medicine which is why many people look at it as a secondary career.