I am afraid that you have been listening to the conversation of someone older than yourself. That is always a dangerous thing to do, and if you allow it to degenerate into a habit, you will find it absolutely fatal to any intellectual development.
Each of the professions means a prejudice. The necessity for a career forces every one to take sides. We live in the age of the overworked, and the under-educated; the age in which people are so industrious that they become absolutely stupid.