My Jag and Kia both have a system so you can't start it and it shoot off, the Jag automatic needs one to press the brake peddle, and the Kia manual depress the clutch.
We had a problem with the Jag where you could press the brake hard enough to switch off the warning light which says press brake to start, but not hard enough to start it. We actually fitted a new battery before the RAC man worked out the problem, if we had sat in the car waiting, it was easy to touch the brake so using up all the vacuum, so it needed pressing a little harder to start it, so RAC man pushing brake peddle with hand not enough effort, he had to actually push with foot to get enough force.
Same with Kia and the clutch, it has to go all the way to start, if not it will not start.