[zlsa]

> Why can't Tesla build their own charging stations

They have. AFAIK, until recently there wasn't any major federal funding for charger installation in the US at least.

> if EVs are so great then why don't some entreprising companies build some charging stations without the taxpayer getting involved?

Because chargers have pretty thin margins and the upfront cost is extremely high (permits, hardware, grid hookup, etc.) It's the same reason there aren't all that many gas station startups.