The contents of my pack (baseweight) can weigh anywhere from 2.5kg (height of summer) to 6kg (multi day winter ski tours) without food and water and depending on the season. Most often I am around 3.5- 4 kg. I spend most of my of time in the Alps and this can often mean snow, cold and wind and other extremes in weather.
It's a common misconception that going lighter means being uncomfortable and unsafe. I am always comfortable and never make any concessions when it comes to safety. I prioritise minimal packing practices rather than packing for all the "what-ifs" that people seem to think up before a trip. I put more emphasis on skills rather than gear. Having the skills to utilise lighter/less gear is often overlooked. As an example You can get away with a much lighter tent when you know where and how to pitch it correctly.
Packing light means I am more nimble and unencumbered. It means less injuries and fatigue. It means a greater connection to the environment.
Whenever I guide I encourage people to reassess the contents of their packs when they get home and really consider each item and what place it has. The best way to save weight is by simply removing unnecessary and redundant stuff from your pack. I am always shocked at all the extra clothing and cooking kit people bring along. Trying to recreate the comforts of home in the bush is futile in my opinion.
Ultimately, people should carry what makes them happy and enhances the their time outside. There is no right or wrong way.
Here are two excellent resources for getting in to a lighter mindset
https://www.reddit.com/r/UltralightAUshttps://www.reddit.com/r/Ultralight