You have always been responsible not only for your own safety but also for the safety of your contacts/co-workers/environment. If you think otherwise, you might want to reflect about communicable diseases/STDs/traffic/gun safety/work place safety/you name it in general and it should become glaringly obvious. Covid safety is not different. For now, the required measures are more severe but it is not true that it is a special in regard of having to look out for others.