I think you have a misunderstanding of what sex is in comparison to what something that is sexual.Sex is defined by the act of sexual intercourse and that alone.
However there are many other things that either can be perceived as sexual or they actually are sexual.Holding hands,hugs,Cuddling ect are not sexual in themselves yet for some can be sexual arousing so there is wisdom in knowing what kind of boundaries to have to try and prevent certain acts of romantic intimacy from being sexually arousing.
The act of kissing someone you like isn't sex but can seen as something sexual if passions become ignited and is seen by some as a physically intimate thing to do with someone you like.Kissing isn't a sin however it can lead to sin if one isn't careful as there's pleasure in kissing and certain types of kissing can be sexually arousing...so theres wisdom to some extent.
I would find it a real challenge if I dated someone but wasn't allowed to kiss them...even on the cheek to say goodnight after a date unless God had clearly instructed not to do so for specific reasons unique to the relationship dynamic.
There are many different views about what is permissible in dating from..is it right to kiss or hold hands or cuddle or be alone together ect..???
Question..are you really saying kissing is sex..or at you really trying to say that kissing is perceived by you as being sexual..(?A degree of physical intimacy)
Coz to say kissing is sex is a bit like saying having one burger is actually eating the entire cow..

