Sparring is better than sex because...
It's safer.
Sparring partners don't get jealous if you spar somebody else.
Sparring partners don't get jealous if they only think you've sparred somebody else.
It's a good idea to spar a lot of people.
Broken ribs heal a lot faster than broken hearts.
The more people you've sparred, the safer you are to spar. (in general)
It's more reliable.
You can't fake sparring.
Sparring doesn't complicate a relationship.
If your sparring gear breaks, you almost always realize before it's too late.
If your sparring gear breaks, it's much less likely to change your life.
You can adjust your sparring gear to fit.
It doesn't matter what gender your sparring partner is.
You can spar in public.
Sparring partners are easy to find.
Sparring has never led to a shotgun wedding.
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Suggestions that have been added
There are many schools that are happy to TEACH you how to spar and most
teachers will give supportive comments after you start. --Suggested by Benke
If somebody points and laughs you probably think it was funny too.--Suggested by Benke
Getting paid for sparring is legal.--Suggested by Benke
One always knows when ones sparring partner is ready to spar.--Suggested by Benke