I tailor pretty much every website I create, both because I want to give you a unique website, and because I love designing. However, if you have found a template that you would like to use, of course I will customize it too.
When I create a bespoke website, I have full control on code and files. Ready-made templates are often made with frameworks such as e.g. It's bootstrap. A framework contains a lot of heavy files and a lot of code, which can slow down the loading of your website and make the website more complicated than it needs to be.
Ready-made design templates also place restrictions on how much one can customize. And whether you buy it or choose a free design template, a lot of people want websites made with the same template.
A tailor-made website will always stand out as it is made exclusively for you.