I work for the NHS and I've been to some scary planning meetings - before this latest outbreak - I'm personally quite confident that the NHS and local authorities have planned long and hard for this, there are certainly huge stockpiles of anti virals, masks, and aprons, nationally and locally.
The concern is that people will be off work looking after the sick and looking after children once the schools close, and that this will effect the general infrastructure, and in particular the supply chain for food and household essentials, so it does make some sense to build up a small supply of tins and packets, calpol etc.
Also, it makes sense to have a plan for your domestic arrangements, for example my husband is a Paramedic and will be on the front line should the worst case scenario happen, I'll be at home with DD as her school will close so we need to develop a plan. Apparently what helped to contain SARS was medical ataff staying away from home for 3 months, hope it doesn't come to that.
As people have said all the planning has been or a much more serious strain, and medicine has moved on somewhat since the last pandemic flu.
Unfortunately thought the national flu line, a crucial part of the plan, won't be ready until the autumn, someone needs to pull their finger out on that one.