The first site should answer: who you are, what you do, where, how to reach you, and why you are not a ghost. Everything else can wait until someone asks.
The useful set
Home: town, trade, the phone, a photo of the real place. A services (or formations, or menu) page with plain names. Contact with address, map, hours, form. Maybe one proof page: reviews, a short about, the team.
That is enough for an optician, a printer, a driving school, a garage. Auto-École Cousin has more because the product is many permits — still each page is a real question, not décor.
What to skip on v1
A blog you will not write. A “news” page last updated in 2021. Six team bios with stock headshots. A popup for a newsletter you will not send. English if nobody serving the counter speaks it.
Empty pages hurt. Google sees thin URLs. Humans bounce. Add a page when you have something true to put on it.
One job per page
The contact page is for writing and calling, not a second homepage. The services page lists what you sell, not a poem. If a visitor has to hunt the number, the site failed even if it won an award in 2018.