I get the feeling governments across the world are putting in place practices etc as a means of preparing the populace for modern warfare (eg. Economic, electronic, power etc), and seeing how they react and whats required to maintain a level of order.
All this social distancing, hand washing etc because of this virus is no different to the advice provided in regards to many other diseases, viruses, illnesses.
I've not read anything yet about what makes covid-19 any more dangerous than other viruses, other than there currently being no vaccine. As stated by WHO, no vaccine is 100% effective, therefore once a vaccine is developed its not even certain it's going to assist those it most likely needs to, the elderly.