It seems to me that another major change over time was that, at one time, one could find a reasonable parnasa with a minimal level of secular education. You did not need a University education to have a good job. Of course, this became less true with the passage of time.
As I understand it, many Roshei Yeshivot were against higher (secular) education. While I imagine that this also changed with the times (since it was recognized that education is necessary for a good job), how quickly did that change take place? Do the large Hareidi Yeshivot still discourage University education?
Of course, I know that there is large variablity in hashkafot, but if folks here have personal knowledge, please pass it along.