Kit lenses are normally at the lower end of lens quality and are supplied as a 'kit' so you can get going.
Other zoom lenses may have a fixed wide aperture etc and be manufactured to a far higher quality.
Accordingly, the price rises.
Dougie.
I wouldn't necessarily upgrade unless the kit lens is limiting you in some way.
In broad terms it is a distinction without a difference!
The key(?) is whether the body being bought is consumer, producer or 'professional' level body.
A very good point. I do find my particular lens quite versatile. And I'm getting good results from it. So, from that perspective there isn't a huge incentive to change.
It's an XT3. Sort of mid range I should think. It seems pretty well balanced with the 18 - 55, which is a good quality lens. It may be that it covers most bases pretty well for my purposes. But it's always good to hear other people's views when it's still a bit of a grey area for me.
I'm glad you mentioned the Fuji 18 - 55. I have one myself, and although I'm far from an expert it does seem pretty good. I will be getting another lens at some point, I'm sure. Which is why I was wondering about the distinction. Particularly as other lenses in the range cover roughly similar ground.