Has Yamato's opinion of Luffy changed now that she knows about his family background as the grandson of Monkey D. Garp and son of Gol D. Roger?

 Yamato's opinion of Luffy evolves significantly throughout the "One Piece" series, especially upon learning more about his family background. Initially, Yamato is drawn to Luffy because of his adventurous spirit and his resemblance to the kind of freedom she desires. Her admiration for Luffy grows as she witnesses his determination, strength, and sense of justice, which align with her own ideals.

When Yamato learns about Luffy’s family connections—being the grandson of Monkey D. Garp and the son of Gol D. Roger—her perspective deepens. She understands the weight of Luffy’s heritage and the formidable legacy he carries. However, rather than being deterred or intimidated by this information, Yamato’s respect for Luffy intensifies. She sees him as a true embodiment of the freedom and willpower she values, and this revelation further solidifies her support for his journey and goals.

Ultimately, Yamato's opinion of Luffy is reinforced by her belief in his potential and his commitment to surpassing his legendary lineage. She recognizes that Luffy is forging his own path, not merely living up to the expectations set by his family. This appreciation for Luffy’s personal choices and his resolve to carve out his own destiny strengthens her resolve to follow him and assist him in achieving his dreams.