I think it's because most Christians aren't ascetics. They're not monks or nuns or penitents wearing hairshirts and whipping themselves to mortify the flesh. I think mainstream Christians today, generally speaking, believe in having a fun time like everyone else does.
See, I tend to believe that you might just have a somewhat jaundiced view of true "asceticism". What does it mean to be ascetic? The word "ascetic" comes from the ancient Greek term
askēsis, which simply means training or exercise. The original usage therefore does not refer to extreme self-denial or punishment of the flesh. It signifies, rather, a process of honing one's "self-control" by striving towards a balanced, spiritual life in which passions do not maser you but you master them.
We all know that human beings have aspirations. In other words we have a set of genuine desires – ‘
immortal longings’, to use the Shakesperean tongue of phrase - that aim for some degree of fulfilled happiness that is innate in us as persons. Most people would agree that there is more to life than eating, sleeping, getting drunk and making love. Not that these things are to be rejected, they just aren't "enough" on their own to satisfy man completely. They are more a means to than end rather than ends in their own right. They keep us occupied, as they should but they do not in themselves answer our greatest concerns or needs, for example, the grief of our impending death; the fragility of our existence in an ever changing, unstable universe or our craving for companionship and fear of being lonely. We want friendship, careers, peace of mind, social occasions to drink with others and healthy, committed sexual relationships in the long run (if not the short run for a lot of people
).
Then, there are other "immortal longings" such as some kind of abstract feeling that life has more to it than even friendship, edifying work, productive property and matrimony/cohabitation with a partner.
There is a great existential dimension which leads us to feel that there must be "more" still for us to aspire too.
And when we get to this stage, we reflect upon a serious of questions of a kind outlined in
Nostra Aetate:
"...Men expect from the various religions answers to the unsolved riddles of the human condition, which today, even as in former times, deeply stir the hearts of men: What is man? What is the meaning, the aim of our life? What is moral good, what is sin? Whence suffering and what purpose does it serve? Which is the road to true happiness?...What, finally, is that ultimate inexpressible mystery which encompasses our existence: whence do we come, and where are we going?
From ancient times down to the present, there is found among various peoples a certain perception of that hidden power which hovers over the course of things and over the events of human history; at times some indeed have come to the recognition of a Supreme Being, or even of a Father. This perception and recognition penetrates their lives with a profound religious sense....
Religions found everywhere try to counter the restlessness of the human heart, each in its own manner, by proposing "ways," comprising teachings, rules of life, and sacred rites..."
- Nostra Aetate, decree of the Second Vatican Council (1965)
Yes, this is where the religious element in man arises in the context of those "immortal longings" that Shakespeare refers to.
True asceticism is not about the rejection of life's pleasures, it is about reserving some space for those "immortal longings" in one's busy life on this earth.
An ascetic does not deny the flesh, he simply recognizes that there is something more than it. He does not reject pleasure, he enjoys it but simply recognizes that it isn't in itself absolute. There is always going to be something "more", something "else".
It is like a tiered wedding cake with many different layers. One does not reject or do away with the layer beneath, one simply builds upon it in the striving towards greater perfection.
One cannot allow oneself to become
too obsessed with those "immortal longings", or one misses the joy of corporeal pleasures. Likewise one cannot become
too obsessed with those everyday, carnal pleasures or one misses out on those "immortal longings".
Do you get my meaning? Balance, moderation is the key.