I almost didn't do it myself. I play with my wife, and she is just fine not doing it. That was before Duviri came out.
You can skip it if you want and to level some stuff for you operator, you can do Duviri instead. It isn't clear to me how that would work, since I do have all of it unlocked and Duviri for me is just one of the fastest ways to get the rest of the focus I don't already have. Although as far as I know, you will still need to do like 20 Eidolon hunts to get the Radiant Eidolon shards.
You can get some pretty amazing weapons doing Kuva Liche hunts and also the Sisters of Parvos. You need to have done a few quests that are unlocked before The New War, mainly The War Within.
You can get a lot of warframes from Duviri now too.
Both Duviri and the Kuva Liche and Sisters of Parvos hunts are fun and not really that grindy. There are no resources you need to scrounge anything up, other than Granum Crowns.
Maybe you can do that instead? Later you might decide to do the New War. I personally put it off for 3 months before doing it.