I think everyone's personal circumstances are different and people should use common sense.
Our house has been on lockdown since the end of Feb, as my husband is vulnerable and so is my mum in law, who lives locally, but is also self isolating due to cancer.
We have been adding her to our online shop and so I have visited her every week to deliver her food. Still maintaining safe distancing and giving her some much needed human interaction in her garden.
My parents are very much older, they really need my help, but I am more than more than 9 hours away. I could drive there without any human interaction, but the care home will not allow me me in.