Ok. If you mean non PvP yes it is designed from the ground up to be a Co-op Experience.

If you mean not being attacked by stuff then no the game is 100% impossible without someone doing combat.

The Game has many similarities to Conan and many big differences. (like natural resources not respawning (minus animals) You are regularly harassed by mobs while doing most anything in the game. However if you have a child that just wants to farm... you can actually farm from early on. Boars at the start. Then Carrots, Turnips, Wolves, Onions and Lox (bisonish) You can also build a tree farm for lumber and Mining can be done without combat with two people where one person protects the other.

Invasions however do happen at your base depending on where you are in the game as such if you have someone playing without weapons then the will have to hide while the people willing to fight does that.

A non violent player can also cart supplies, sail a boat (to cart supplies) was well as smelt and even be your dedicated cook and builder.

So you can have a player that technically never actually attacks anything or anyone.... and would only kill animals for food and leather.

The game isn't designed to be played that way... but if you had someone that didn't want to fight but wanted to build, farm, forage and mine... well that can be done so long as you have people happy to fight.