Ceramic pans vs PTFE pans

1. Ceramic pans are more non-stick than PTFE. They don't need oil.
2. Ceramic pans are less durable. They fail within a few months of use.
3. Ceramic pans don't scratch, they are too hard.
4. No, don't throw it away. They don't contain the halogen elements found in PTFE.
5. I wouldn't say so. Mine and my mother's failed earlier, and I've read many reports saying the same. 6-9 months seems to be a common period for them keeping their non-stick properties.
6. Use whatever makes it clean. I prefer to use standard detergent.
7. You are cautioned against ingesting PTFE. This is only relevant after scratching. PTFE is chemically extremely durable (that's why it's nonstick) and will not enter the food unless physically damaged.

I can address a few of your points.

• Polytetrafluoroethylene (Teflon) is the third most slippery substance known to man (the first two being incredibly expensive - an alloy of aluminum and Diamond-like carbon). There is nothing used in home cooking that is more non-stick.
• Teflon pans are NOT highly vulnerable to normal use with metallic utensils. Just don't aggressively scrape them.
• Teflon's safety is related to off gassing under high heat.
• Ceramic is a loaded term. There are many, many coatings that are ceramic, and they all have different properties, where as PTFE is exactly one type of coating. Judgements of 'ceramic' are not really reliable. A specific pan or coating technique are the only tangible thing that can be judged.