Fact is, the majority of jobs are "crank work". Whether sewing shirts, flipping burgers, making coffee or, in this case, reviewing NDAs or other mundane agreements.
I'd argue there isn't simply enough "work that people like doing" to give everybody full-time jobs with all this automation.
Nobody in their right might would do boring/uninteresting work if a better option was available to them -- including lawyers.
In 1800, 83% of American jobs were in agriculture. Now it is 2%, not because people eat less per capita but because of increased technology. We have invented a lot of stuff for those people who would have been farmers to do: advertising, lawyering, flipping burgers, programming, etc
Many of the jobs we invented are crank-turning jobs (like most ag jobs were previously). The process of creative destruction is that the most crank-turning of them will be automated and we will invent new and innovative cranks to turn! For example: full time Twitch broadcaster. We are very good at making up new work for people.
I'd argue there isn't simply enough "work that people like doing" to give everybody full-time jobs with all this automation.
Nobody in their right might would do boring/uninteresting work if a better option was available to them -- including lawyers.