Social robots that promise companionship and stimulation for older people and those with dementia are attracting investment, but some question their benefits.

中文翻译：

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机器人能否解决老年人护理危机？

为老年人和痴呆症患者提供陪伴和刺激的社交机器人正在吸引投资，但一些人质疑它们的好处。