There is a particular kind of parent who decides, early on, that the most dangerous thing they can do for their child is keep them comfortable and uninformed. R. Madhavan is that kind of parent. He spoke to his son Vedaant about sexual touch before most parents would have thought to and he explained contraception. He laid out the realities of celebrity life, the good parts and the parts that quietly do damage, before Vedaant was old enough to stumble onto them on his own. In a recent conversation with Kumudam, Madhavan opened up about how he raised Vedaant, now in his early twenties, and the picture that formed was of a father who decided long ago that honesty was cheaper than the alternative. “I have treated him as an adult since a very young age,” he said. That was not just a philosophy, Madhavan explained, it had a practical edge.…