Industry does try to lower the barrier to entry. At the same time it strives to reach ever-higher tops. APL family of languages have a high barrier to entry - w

Industry does try to lower the barrier to entry. At the same time it strives to reach ever-higher tops. APL family of languages have a high barrier to entry - which is of course a problem - but even remaining novice in the language you can be routinely more efficient working with APL than working with another language. So - that high barrier to entry is a disadvantage, but for that you can have pretty high levels of efficiency in the same language going from newbie to intermediate to advanced levels.