How is infrastructure maintained under capitalism?

How is power and water supplied safely to every community?

Who maintains the roads? Are there still cars?

Is there still public school? Are there still hospitals? Are there still medicines?

Who is responsible for the care of the elderly and disabled?

How do you standardize the safety and quality of services that are currently done on large scales? For example, recalling contaminated food or medicine, or products with dangerous flaws?

I understand how many crimes will be deincentivized because no person will be desperately impoverished and nobody can accumulate wealth. So, you wouldn't have much reason to take things from others, or to dump toxic waste into nature, or to cut corners with safety.

I think what I'm missing is how a gift economy and mutual aid will ensure quality of services that are currently highly bureaucratic.

How do you train a person to be a physician? Are there still licenses? What happens if someone does something unethical as a physician, like breaking patient confidentiality? Does the community decide on the consequences?

Edit: okay, you're right, I wrote way too many questions here.

I'm not gonna delete this post because many people have patiently explained things to me in the comments, and I think it would be disrespectful to remove my end of the conversation.