Last week, House Democrats introduced legislation that would add dental, vision, and hearing benefits to Medicare. Lawmakers want to include the measure in a massive, multitrillion-dollar budget reconciliation package later this year.

Increasing benefits for today’s Medicare beneficiaries could eliminate them for tomorrow’s. Medicare can barely afford to provide its current level of coverage. Tacking on another suite of expensive benefits could jeopardize the program’s financial future. More than 61 million people are currently enrolled in Medicare. That represents a more than 30% increase over the past decade. The number of beneficiaries will increase to 75 million by 2028, according to the Centers for Medicare and Medicaid Services.