As a paying career, that's not easy, although it may be easier as time goes on, I suspect. For me it's just a labor of love. I was always interested in history and genealogy anyway, my degree is in history. It was only when a relative wanted to find their biological family that I started helping with that and learned more about genetic genealogy. Then another relative asked if I could help them too. Eventually I began using those skills to help adoptees and people looking to break down their genealogical brick walls. That's very rewarding.
Overall, I don't think it's hard to learn, especially for someone with a scientific background. I do think my history/genealogy background helps me in certain ways sometimes too. Like anything you get better with experience. The important part is probably just immersing yourself in the community enough to understand ethical concerns so that you approach your search responsibly. It's very important to have an understanding with people that when they undertake a search they may find results that are unexpected.
