No, we should precisely look to let kids "down easy" from their errors, rather than ban activities that can lead to those errors, for the very same ends that you're advocating. When too many possible mistakes have big irreversible penalties, everyone becomes much more risk averse, and the society becomes boring and rigid. See: helicopter parenting.
Helicopter parenting basically augments the kids decision making. The parent guides them through everything. When the consequences are real, even permanent sometimes, and the it’s up to the kids to do the right thing, and they know it, and they’ve been educated properly on it, then you get a person who is healthy. They develop risk assessment and management and use it in their adult life where, surprise, you have to make essentially life or death decisions every day. You can rack up 30k on your credit card in a single swipe and, for a lot of people, that would be a kind of death. Almost every decision we make has irreversible consequences. The earlier kids learn to deal with that, the better. As long as they are educated and prepared in some way.
