People's volume and approach varies. I'm a happy customer and I use my entire double max subscription on planning and analysis and have other models doing all my implementation work because I would burn through my subscription in a day or less. It's difficult to calculate, but I'm something like 10-20 billion token per week consumer and I can't use a US-based model to do this volume of implementation work.
Also, a lot of this work is verification to ensure that AI generated code does what is intended and is safe to merge and deploy. That verification work is critical and uses a lot of tokens.