Most lawyers come into the law from an arts having come from doing a degree in the Arts. It’s unusual for most of them to have come from a sciences or mathematical background.
Given the length of time it takes to become a lawyer and how much their hourly billing rate is and most good lawyers are super busy there isn’t much incentive for them to learn how to use Excel. Why bother - there is really only downside in terms of billable hours in using excel to educate their clients.
...