Casual sex is more or less sex done for pleasure and with many persons outside of a committed relationship. In contemporary Western society, this is not as condemned as it once was, though of course sexuality is subjective and not everybody approves of it.
However, casual sex is common for younger people, because we've grown up in more sexually open times compared to our parents and grandparents. This is my own view of course, but then I think people partake in casual sex for the following reasons:
- Fun
Humans like happiness and naturally seek it out. Many things are fun evidently, but then sex is fun also. I cannot speak for all persons, but I believe this is arguably the major reason why many people do it.
- Social Reasons
Some do it to look cool, or out of insecurity, which are not good overall. Nonetheless, this is a factor, especially for insecure persons or others who are subject to peer pressure or want to fit in.
- Abuse
Unfortunately, some people do it as a response to past abuse. This cannot be mocked, though it's a way of coping with the abuse.
This may seem very hedonistic to some, but then this is just subjective morality at play, and many theists would not condemn things that are enjoyable. From a Christian standpoint, Jesus never said enjoyable things are wrong in the Gospels. He never said casual sex is wrong either, and neither did God in the Old Testament, at least not explicitly.
There are drawbacks of STDs, pregnancy, etc., though protection is widely available and as with all things using common sense, good judgment and intuition must prevail. A criticism of casual sex is that it undermines intimacy, though I'd say it shouldn't. Sexuality in humans is used for many different things, and the idea it should be solely for committed relationships stems from religion largely. In some cultures, sexuality is an actual ritual, so it's complex and subjective. If two persons consent to sexual activity, then no one party is being used.
These are just my thoughts, but then comment and cite your thoughts!
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