The Dutch Authority for Consumers and Markets (ACM) warns that households remaining connected to the gas network post-2050 could face a fourfold increase in costs. This stems from the Netherlands’ political commitment to phase out natural gas by 2050. Despite the shift, the gas network must continue operating to serve those unable or unwilling to switch to alternatives. The ACM highlights the potential financial burden on these "left behind" households, raising concerns about affordability. This situation could create significant inequalities within the energy transition. The warning underscores the need for careful planning and support mechanisms to ensure a just transition for all citizens. It also emphasizes the importance of accelerating the disconnection from natural gas where possible.