According to Osho, Buddha's act wasn't weak renunciation; true awareness makes attachments fall away naturally, like dry leaves, without wound or pride. Deliberate leaving is ego-based and breeds memory - boasting, "I left." In Buddha and Mahavira, family lost meaning and dropped on its own. When something truly falls away, there is no struggle, no temptation, and no story of sacrifice.
Buddha didn't weakly abandon his family; as he woke up inside, family life simply stopped mattering and fell away by itself.