You shouldn't climb without experience. You can get experience unless you climb?

Every climber brings "stuff" to the mountain. Sometimes its enough sometimes its not. Very few die based on a bad decision. But there are many who suffer based on a bad decision. that's experience. please don't die. but go

I think the riskiest part on the main Whitney trail is falling at the top of the chute and not being able to self-arrest. The lower portions and middle portions are not as risky as there is a pretty good run-out at the bottom of the chute. As the snow on the chute melts the rocks become obstacles that can kill with blunt force trauma if you fall and cant stop. However there are many other risks. The switchbacks are icy and are more unsafe IMO. The weather can be an issue. lightning has killed on the summit. Timing is also important as most climbers time their descent to glissade the chute in the afternoon when self arrest is easier and it is not icy. So with that the temp also matters. Your fitness and gear and experience and that of your party members.