Like many of these threads, I feel like the answer lies in between the two opposing arguments.
Of course those who have been classed as vulnerable (whether that's vulnerable enough to shield or take other precautions) should be more aware and proactive in regards to the pandemic's events.
However, and I say this as someone who is in the vulnerable category, we simply cannot expect everyone else in society to stop to continue to keep us 'safe'. The whole premise behind lockdown was simply to help the NHS be able to handle cases- it wasn't explicitly to help the vulnerable (this point being proven by a lot of vulnerable people not being offered ventilation, etc).
The next few weeks will see a relaxation in rules. People will have to go back to work. Children will have to return to schools eventually. Of course, everyone is entitled to make their own decisions regarding their safety, but it shouldn't be down to the government to fund these at this point, anymore. If you don't want to go back to the office, then you'll simply have to figure it out with your boss, or quit. A lot of people have had nearly two months of being relatively safe at home- something that NHS, retail and other frontline workers haven't had the pleasure of. Things need to go back to normal for the sake of the rest of society.
There will come a time where there's a 'handover' of responsiblity for the vulnerable, and it's coming relatively soon. The majority of the population will be handing the responsibility of protecting the vulnerable, back to the vulnerable. The rest of society will begin to rebuild, taking pauses every so often to stifle any other peaks, but generally speaking, things will slowly get back to normal. The vulnerable will have to make their own decisions- if they want to live a normal life, they take the risk of dying from Covid. If they want to protect themselves, then it's down to them and only them.
It is quite an inherently selfish attitude to expect an entire population to keep in lockdown until a vaccine, which might never come, just to protect a small proportion of society. I'm not saying that those classed as vulnerable are any less worthy than anyone else, but, they're not anymore important, either.
And, regarding the panic over CV-19? It will relax. Humans tend to become complacent after a few weeks of panic. Once things start opening up again, someone will go for a coffee with a friend once. It will be fine. The following week it might be a coffee and lunch. And so on. It might take time, but people will eventually relax, especially when they realise that the majority are.