Re masks, I'll have mine and will wear it in the crowded spots and anywhere else that I think it might stop others feeling uncomfortable.
Polite advice to anyone planning to wear a face covering to protect themselves... Go for something proper. Surgical masks, cloth face coverings and visors will do very little to protect you from airborne virus (those types are much better at stopping you from spreading it to others).
Also polite request to both mask wearers and non mask wearers, no need to give each other snide comments.
(Happened to me in Tesco "why you wearing a mask you loser")