Based on the report by IdeaWorksCompyany. According to industry projections, ancillary revenue in the airline industry is expected to grow by 15% by the end of 2023, reaching a total of $117.9 billion. Low-cost carriers have been particularly successful in driving ancillary revenue streams, accounting for approximately 31% of the market share. The main contributors to ancillary revenue are seat selection and baggage fees, which generate significant income for airlines. These fees allow customers to choose their preferred seats and pay for additional baggage, providing them with more options and flexibility. Additionally, baggage delivery services and loyalty programs also contribute to ancillary revenue, offering customers added convenience and rewards. Overall, ancillary revenue has become a crucial component of airlines' business models, helping them maximize their share of the customer travel wallet and enhance their profitability. By leveraging various ancillary offerings, airlines can tap into additional revenue streams while providing customers with value-added services and options. What is the downside of these statements