I say if you have disposable income (play money) and want to try to stock pick, go for it. Just don't confuse it with an emergency fund or retirement savings unless your Warren Buffett, don't bet more than you can afford to lose without much pain.
I don't pick individual stocks, but mostly I don't have any interest in the topic, and I'm not sure it's a topic I could make myself have any interest in. So boring mutual funds it is.