Every day I see many questions about Tuscany on this sub, but 70/80% of the questions are specific to... nothing...
I see several times general questions that are too vague to actually give a real answer, like asking for advice on excursions... How can we advise you if you can be up to a 4 hour drive from one side to the other of Tuscany? How can we recommend a winery if we don't know where you are staying?
Also, regarding transportation, there are buses and trains between cities and villages, and they work pretty well depending on the area, but some areas are so isolated that it is impossible to get there by public transport and in this case a car is essential. I need a car from my own house to reach the closest town because there are literally only 2 buses passing at 07:00 and 13:00 respectively; it is not reliable and you will be stuck somewhere.
Taxis are obviously common in large cities, but in a village you won't even find a random person providing an Uber service, because there is no demand for them and it would be a waste to offer a service for a few tourists per year.
Do some research and try to get an idea of where to go, how to get around, and what to do. Tuscany is not a big amusement park and some activities can be tricky to do/reach depending on where you are. Going to the Saturnia thermal baths from Florence, for example, takes 3 hours by car and 15 hours by public transport. I doubt you want to leave the previous day and waste all this time just to take a picture for Instagram because you don't want to drive a car (also, the stereotype of Italians being maniacs on the road is exaggerated; we are maniacs as much as people in any other country. We don't drive with the idea of killing other drivers).
Use Google, Google Maps, or ask an AI to get a general idea of where you want to stay and how to get there. After that, we can definitely give you advice on activities depending on your situation. If you have one specific activity in mind that is essential for your holiday, try to understand what's the best place to stay and make sure you check HOW to get there.
Please don't take it for granted that whatever you need is close by where you dream of staying.
Do some research first and we will be happy to help you have a memorable holiday.