timjohn {l Wrote}:My grandson is 5 years old and loves playing STK on Ubuntu with me. I steer while he accelerates and operates all weapons.
He's too young to play by himself,
I know what you are talking about ... I do the same with our kid (same age).
and I don't have the time to unlock all tracks in challenge mode.
Search for 'challenge.xml' here in this forum, and you will find

But consider trying to win the challenges (on easy mode, there's no real disadvantage of using the simple mode) playing together. It's quite hard

you might have a lot of fun, and even see the end animation

Perhaps you might want to unlock one or two challenges, that are indeed pretty difficult in 'tandem' mode

So he stares at the locked tracks and gets completely frustrated at not being able to see them.
although he enjoys the competition, he loves just driving around the tracks.
In 0.8.1 we are planning to add an Easter Egg mode, in which you drive around (without opponents) and have to search for easter eggs

Is it not possible to include a "Child Drivethrough" so that children can enjoy STK until they are old enough to race on their own?
Not sure about this. It's easy enough to unlock them, but if we add this to the game, many people will just use it, and the game will (appear to) offer a lot less playability - appear shorter. Many many games use locking in order to give some rewards to to the players.
Hope you can enjoy the new tracks!
Joerg