Senator Elizabeth Warren from Massachusetts has expressed concerns regarding the quality of food at certain restaurant chains. She attributes this decline in quality to ownership by private equity firms. On September 15, during a discussion, she suggested imposing restrictions on these firms from purchasing restaurant chains.

However, there is an existing mechanism that serves as a regulatory check: consumer sovereignty. This concept implies that if diners are dissatisfied with the offerings of chains owned by private equity firms, they will naturally choose to dine elsewhere. Thus, consumer preferences and choices drive market dynamics and can influence ownership structures by determining the success or failure of these restaurant chains.