An excellent observation!

Research that was conducted by the British Government in 2017 has found that about 200,000 older people in Britain had not had a conversation with a friend or a relative in more than a month.

I remember watching in the news that, in some small villages in Serbia (my country), the communities are paying young unemployed people to spend some time with and help lonely elders with no relatives once per week.

I agree with you that both young and old could get value from mutual interaction (nice note about the kids and their grandparents) and it's important to raise awareness about this.