What's the main difference between building your own website using wix or wordpress templates and using your own programming language?

building your own website You actually build everything from ground build your landing page, your navigation bar, footer and rest of your website blocks, that is good also you can custome your website like what you want but it take along time and time is money,   

but with framework like woldpress you can take a very less than custom website and give you same result sortoff

every one of this method have benefet and status to use and that depend of your needs

i hope that help you

Basm allah alrahman alrahim

control

you can control every thing when you build website from scratch and you can have your own website with your design

here is some advantages and disadvantages for building your own custome template for wordpress link