Changes to state and federal laws happen all the time. Stay up on the law to stay out of trouble and provide superior client service. This requires an investment in education and tools. The internet offers a nearly-limitless law library at your fingertips 24/7.
All lawyers have their comfort zones. Dabbling in an unfamiliar area increases the odds of a mistake, which can lead to a malpractice claim or bar grievance. The ethics rules permit you to take on a novel matter as long as you take appropriate steps to become competent.