Can babies eat tofu?

My friend introduced her baby to tofu after he turned 1 year old. While she is a vegetarian, she is raising him with all kinds of food in order to benefit his development and growth but she does let her baby try her vegetarian food, like tofu. She usually grills her tofu with a hint of pepper and garlic powder and serves them with a salad. She'll let baby have a bite or two and he seems to like it.