Right to say NO to overcooling?

What is the most comfortable indoor temperature in summer?

I often see 78F for air conditioner setting as energy saving threshold. And actually I found that my office is kept at 78F.

Darn it, I feel cold.

I don't use air conditioner when I leave home, so I comfortably wear no-sleeve shirt + skirt+ pair of sandal. (Highest is around 100C these days) But once I am in the office, I am cold! I put socks on and add another layer of cloths when I am alone in my cubicle, even when I know it looks terrible with what I wear! I can't stand freezing feeling. What makes worse, I cannot stand the difference of temperature - I feel tired by going from 100F to 78F, then back to 100F and then back to 78F.......doesn't look like my body is responding well to the fluctuation.

The temperature is even lower in shopping malls, restaurants and a lot other places where they apparently set air conditioner lower than 78F.

I just have to wonder if I am the only one who is freezing at 78F?

Do I have the right to say No to overcooling? It makes me stupid especially when I think I am collectively emitting GHG just to freeze with my sandals on.

Recommended energy saving/GHG emission reducing air conditioning temperature in Japan is 28C (82.4F).

I am very curious to know if there is anyone else who wants indoor temperature higher in summer. I just wonder if we can collectively say NO to overcooling.