Every company which is initiating its own tokenization effort is a welcome update. We have already seen a lot of them. Tokenization developments are not only focused on retail business such as Walmart but also in terms of real estate, transportation, agriculture, energy, medicine, data, freelancing, ads, gambling, and so many others. 

However, the biggest problem here is that a huge and very influential company such as Walmart getting its feet into cryptocurrency will be very hot in the eyes of the government. With an annual income of at least $500 billion, more than a couple of million employees, and millions of millions of customers daily, I don't think the government will just leave them doing their shift from fiat into crypto free and without any hindrance. This is going to be a hard battle for them.

(Source: https://cryptoslate.com/walmart-patents-own-cryptocurrency-battle-amazon-retail/)