When my team's support refuses to buy sightstone

tbh the first time i played, i was support and I didn't know sightstone existed to my first team i'm sorry

It's the teams job to ward, the purpose of a sight stone is not only for the support

I regularly go the ward trinket jungler item when I jungle and if I am ahead in lane that it doesn't matter if I use 800g the. Get rid of it later I'll buy a sight stone as an mid or top, heck of I'm losing top I'll buy a sight stone to be as healpful to my team. As I can be

The problem isn't that the support isn't getting the sight stone it's the team isn't working together to have vision for safety and knowledge of enemy positions

That's literally the worst thing a support can do. A sightstone is ridiculously powerful, even after they removed the vision wards from the shops. Just, why?

you dont always have to i sometimes, just get pink wards , rather then wasting gold on a sightstone if im behind or a trouble some lane, that is