Wealthfront and Betterment fit the population of people that honestly don't even want to read that wiki and just want someone else to deal with it. That populat

Wealthfront and Betterment fit the population of people that honestly don't even want to read that wiki and just want someone else to deal with it. That population is a lot larger than you think- I don't have the statistics handy, but a very large % of people just have their 401k funds sitting in cash. And even for slightly more knowledgeable people, they are happy to have a middle ground of a company that at least does an annual checkup to make sure their portfolio makes sense while avoiding a sleazy broker type. You are right that you can just read that wiki, but a lot of people just aren't want to and are willing to pay a fee to avoid it.