I'd say it's perfect - hey at least you're not looking at getting an E46 M3 lol
I think the Miata would be a good first car, and I see the FRS as a Miata/S2000 with a fixed roof and backseats. So here's why I think the Miata/FRS would be good first cars:
- It's not fast
- The performance of the FRS is very much focused on the car being lightweight. If you decide to bring friends with you who would say "let's see what this thing can do", you won't really be able to show off because of all the extra weight from having your friends in the car

- It's a lightweight, RWD, small, nimble sports car - learning to drive this thing properly will make you a better driver.
- It's a modern car meeting the most current safety standards; which means that if you do get into an accident (as people apparently think is inevitable), you would be better protected than say getting into a nasty accident in a $1,000 car from the 90's that will crumple like a coke can and probably kill you.
So good luck, and I do honestly hope you drive responsibly so our insurance rates don't skyrocket