You need to be 21 or older to work.
This is a delivery job that requires you to drive a vehicle.
https://flex.amazon.com/get-startedIf your region is not in the list you can sign up to get notified when your region opens up. I recommend daily monitoring and applying soon as you see your region pop up.
Imo, Amazon Flex by far ranks as a top extra non-Uber income earner even though it has been recently difficult to catch work blocks compared to when it began in late 2015. Nonetheless, it has proven to be a lifesaver to lots of folks.
Paying 18-25++ bucks per hour ($18 base + tips), experience shows that on a lucky work block, one can even get more $. How about a ultra-rare $126 total jackpot for working just 2 hours.
You literally need to 'fish' for work blocks unless you get a schedule offer. Read blogs on how to do it.
Feel free to PM me for strategies once you succeed hopping into the Flex bandwagon.
Btw, Amazon Fulfillment is another option ($18 per hour, no tips).
Fyi, Flex and Fulflment are 1099 job opportunities.
Peace and Blessings.