Rather, it's an opportunity to develop into a well-rounded individual. Besides, you wouldn't spend 5-6 hours straight playing the same game or reading the same book. With rare exceptions, when a particular work becomes too captivating. More likely, everything will merge into a routine without switching attention.
And you will definitely grind. You won't reach 2000 MMR in Dota in half an hour a day, and you'll be watching one anime series or show for a month, you'll be completing a board game for five years, and you'll only be able to finish a moderately sized book in a reasonable time if it's a thin children's book with large print and easy to understand. Or a brief summary from a literature textbook.