+1 ilogical I was about to write the same thing.
The thing is, head injuries are massive news currently in all sports, they have to be seen to be taking them seriously:
Dos and Don'ts
DO make sure you stay within reach of a telephone and medical help in the next few days
DO have plenty of rest and avoid stressful situations
DO show this factsheet to a friend or family member who can keep an eye on your condition
DO take painkillers such as paracetamol for headaches
DON'T stay at home alone for 48 hours after leaving hospital
DON'T drink alcohol until you feel better
DON'T take aspirin or sleeping tablets without consulting a doctor
DON'T return to work until you feel ready
DON'T play any contact sport for at least three weeks without consulting your doctor
DON'T return to driving until you feel you have recovered. If in doubt consult your doctor.
source: www.headway.org.uk/minor-head-injury-and-concussion.aspx?gclid=COTWvoKxjsQCFYrjwgodZFMAqg
The most important point in there is this:
DON'T play any contact sport for at least three weeks without consulting your doctor
for the sake of argument, anyone who's driven a car on track can know, racing will come under the bracket "contact sport". McLaren have consulted a doctor (I'm guessing it's not your normal GP either, more likely a specialist) who says he can't race. It's not because he's incapable/doesn't want to/electroman/actually already dead/sucking ron off it's because if he had another off and got a second concussion he could die. Yes Will, in the 1970's or whenever it was you were "racing", people were very blase about most things, including head injuries. Once people started connecting the dots of how seriously you need a head, they started to be a bit more careful about how they want to keep people free of unnecessary brain injuries.