Mavji Dave played a crucial role in convincing Gandhi's family to allow him to pursue further education in England. Here's how he did it:

• Financial Support: Mavji Dave, who was a family friend and advisor, recognized Gandhi's potential and offered to provide financial assistance for his studies in London. This alleviated the financial concerns of the family, especially his mother.
• Oath of Abstinence: To ease his mother Putlibai's concerns about the potential corrupting influences of foreign lands, Gandhi, under the influence of Becharji Swami, took a solemn oath in the presence of his mother that he would abstain from three things: wine, women, and meat. This assurance was vital in persuading his deeply religious mother to permit his journey.
• Influence on the Family: Dave wielded considerable influence within the family and community, and he used this influence to advocate for Gandhi's education. His support lent credibility to the idea and helped sway the opinions of other family members, including his elder brother.

In summary, Mavji Dave's financial backing, combined with Gandhi's oath of abstinence and Dave's influential position, were instrumental in overcoming the reservations of Gandhi's mother and elder brother, paving the way for his education in England.