Brand Ambassador for Pet Store: New career option?

I am an Economist and I teach in a Management School. I have many colleagues in the discipline of marketing and a number of our students are placed in companies with roles in marketing. So I am well aware of the term Brand. In simple terms a 'Brand' is a type of product manufactured by a particular company under a particular name. A relatively new term, popular in the past decade, is 'Brand Ambassador'. A Brand Ambassador is defined as 'a person, especially a celebrity, who is paid to endorse or promote a particular company's products or services'. The key words are celebrity and paid. We normally think of popular movie stars like Shah Rukh Khan, brand ambassador for Byjus learning app, or Aishwarya Rai for beauty products. And they are paid in millions I believe. A new career is that of being an 'Influencer', person with more than 10,000 followers on social media! Influencers also become Brand Ambassadors. Being neither a celebrity nor an Influencer, imagine my shock when I received an offer from a pet store to be their Brand Ambassador!