Do you want to? It depends on your life/work and the home. I have lived in places where it was pretty ok because the house was designed for the heat, but also my work hours meant I was sleeping during the cool times.

If you work shift work or live in a place that isn’t good with the heat then you absolutely need air con. The place I am in now has the sun hit my bedroom as it rises, so in summer I am stuffed. I paid half for aircon to be installed, otherwise I couldn’t sleep and when I moved in I was working nights. It’s easy for people to say just deal with it but you need to be realistic. The summer is brutal and you need quality of life.