Now he will, but not when he was the same age as Max. Look at other drivers of a similar age to Max on the grid. They're all up for it as they all think they'll indestructible and have nothing to lose. Backing out and picking your fights tends to come with maturity as it does with life..
Leclerc impressed me yesterday. He was going for an overtake on Bottas (i think it was?) backed out and cut the chicane but got ahead of him. So he gave the place back while still being close enough to get a tow and sail by him into the next corner. Its sneaky but its also really quick thinking and is what you need to maximise your performances. I'm surprised Perez threw away 3rd by not doing something similar and instead taking the 5 second hit?! Vettel is also good at quick decision making too. Like when overtaking people into the pits etc when they are slowing to stack their stops.