Why don't Protestants engage in monasticism? One distinction between the vast majority of Protestant denominations and those of the Roman Catholic Church and Orthodox Church is the lack of monasteries and a monastic class. What is an overview of why Protestant denominations generally don't have monks?
Luther and Calvin
Protestant negativity toward monasticism can be traced back to the Reformers, particularly Martin Luther.  Luther was himself a monk, and after his conversion, he became progressively more opposed to the practice.  In 1537, he wrote that monastic vows &quot;must be absolutely abolished.&quot;  He also frequently and enthusiastically attacked monasticism in his writings and sermons.
Other reformers, like John Calvin, followed him.  Calvin devotes a large portion of Book 4, Chapter 13 of his Institutes to the question.  He speaks somewhat favorably of Augustine's depictions of early monasticism, but he widely criticizes the 16th-century version, saying that &quot;no order of men is more polluted by all sorts of foul vices&quot; (4.13.15) and using words like &quot;abominable&quot; and &quot;pestilential&quot; to describe monasticism and its errors (4.13.12).
Doctrinal Criticisms
A concise criticism of monasticism can be found in the Augsburg Confession, the primary confession of the Lutherans.  Article 27, On Monastic Vows, admits that the monasteries were once &quot;profitable to the church,&quot; but lists a number of evils that had been introduced by Luther's time, such as:

Propensity toward ensnaring the weak and ignorant (5-8)
Elevation of the monastic vows to being meritorious in themselves (11)
Elevation of monasticism above other vocations (13)
Rejection of the command to marry (18-21)
Holding people to vows perpetually, without recourse, especially those entered into too early (27-33)

Thus, the confession concludes:

So many wicked opinions are inherent in the vows, namely, that they justify, that they constitute Christian perfection, that they keep the counsels and commandments, that they have works of supererogation. All these things, since they are false and empty, make vows null and void.

Calvin and Luther's objections to the practice follow along these same lines, and also include denunciations of the &quot;idleness&quot; of monastics (Calvin, 4.13.10).  Given these objections, and the enthusiastic criticism of the practice by these and other early Protestant leaders, it's not surprising that monasticism has not generally existed among Protestants.
Early Reaction
An example of early Protestant reaction against suspected monasticism can be found in a 1641 Puritan pamphlet entitled The Arminian Nunnery, written in relation to a small religious community called Little Gidding. The author's initial concerns include women &quot;watching and praying all night,&quot; their &quot;canonical hours,&quot; and the decorations of their chapel, all of which &quot;strongly savour of Superstition and Popery.&quot;
These concerns were not assuaged by the fact that two of the women, thirty and thirty-two years of age, were virgins who had given themselves to fasting and prayer.  The author attacks this as &quot;a contemplative idle life&quot; that insinuates that other callings are not service to God.  He admits the point that the women &quot;had made no Vows,&quot; but finds many vestiges of Catholicism worthy of criticism.
The Arminian Nunnery thus mirrors several of the criticisms mentioned above, particularly those of rejection of marriage, the elevation of monasticism above other professions, the concern over vows, and the idleness of monastics.
Modern Day
Some modern Protestant &quot;monastic&quot; communities exist, among Anglicans and more generally within Protestantism.  Notably, other than in the most conservative Anglican orders,  even these tend to avoid at least some of the issues raised in Augsburg, by relaxing or not requiring vows of celibacy, poverty, or obedience.