Warmoth, Allparts, Mighty Mite, USACG, and a bunch of other outfits produce kits for people to assemble.
It's a lot like building a model airplane from a kit versus starting with raw balsa. If you can put tab A into slot B, you will be successful.
As a brand, Warmoth is premium. They're doing Fender-licensed stuff prob'ly better than Fender.
One thing to note: An instrument made from parts is rather like that kit-made model airplane. Its value is much less than a comparable ready-made toy, because the value of the kit is you get to make it yourself. You are paying for the pleasure of building it.
So my caution is, if you don't love building it and just want a good instrument, don't go with Warmoth and the like.
There ARE lots of cheaper ways of doing a DIY than Warmoth. If you add it up, they're charging quite a premium for a few bf of wood.