Lucca The reasons I will, generally, not wear a mask run from the trivial to the serious. Let me start with the trivial. I am fed up between having to choose between seeing and breathing. When I wear a mask my glasses steam up, I have tried all kinds of solutions to this steaming up, but none of them work. I either wear a mask and work blind or take it off and see where I am going.
So when I wear a mask, which I have done willingly - and gloves - for most of lockdown, to protect others. But as I don my mask and my glasses steam up, so I keep moving my glasses up onto my head, pulling them down again when I need them, then when they steam up pushing them up again then they fall off, then I, or others came dangerously close to treading on them.
The other reasons are that I am now fully vaccinated as is practically everyone I mix with. I am not travelling on public transport, I am not in contact with children, I am not attending crowded events, inside or out. I understand the mathematics of risk and probabilities.
All together these indicate that the risk level for not wearing a mask in the places I frequent is exceedingly small. I will be in greater danger of a host of other risks from heart attacks to ending up in A&E following a domestic accident than I will of transmitting or catching COVID. So, as wearing a mask is such an inconvenience, I will not wear it where I consder it safe to do so.
Like other non-mask people I will carry a mask with me and wear it if requested or if I find myself in a situation where I deem it necessary.
I hope this answers your question.