In matters by state. Although most states have the drivers ed class for age 15/16
In the UK you can obtain a provisional driving licence at the age of 17, this will enable you to take lessons on a public road, however you can take lessons at any age on private land, assuming your arms and legs are long enough to reach the controls.
In order to take driving lessons in Michigan, the learner's license is required and the person must be at least 14 years and 9 months old.
Your child has to be 12 or older
Any young age is good, but six years is probably the earliest you'd want.
You effectively can't take lessons until your 17th birthday, but you can apply for your provisional licence (Which you need at the very minimum to drive a car on a public road) up to three months before your 17th birthday. IF Your provisional licence is validated before your 17th you can start lessons. Alternatively you can take what is known as "Off-Road" lessons on areas away from the road (ie. car parks, industrial estates etc.) , or drive on private land, which you can do from any age. You can also take motorbike lessons (50cc or under) from your 16th birthday with a 'Moped Licence'.
You can drive an agricultural tractor unaccompanied to and from tractor driving lessons at the age of 16.
4-8 weeks at the earliest.
No, but he learned how to swim at age 5.
You can take puppies to the vet from the day they are born. There is no minimum age to take a dog to the vet.
The earliest age that you can retire is at 62 years old.
That varies from state to state. I'd go to the BMV and ask them there or google "Age Requirement for Learner's Permit" followed by your state. In Indiana, you have to be 15 if you are attending driver's education, or 16 if you're not.