Because children are growing up less and less connected to their relatives. Not just grandparents but also cousins too [1]. This is contributing (along with 2-income households) to the decline of local cultures and institutions, and the death of community overall [2].
Thanks (for link). The most interesting part to me:
>[paraphrased] According to BCG: in 2023, the top 3 US meat-packers invested approximately 5% of their capital funds on advanced automation equipment, with plans to "repurpose" 500 employees per year.