Not an issue. Most people would opt to stay on Earth. It is the young bold and bright ones who would the leap. The main reason it has not happened so far is money. Automation will soon make space a money MAKING enterprise. Much more than the special niches already in use.
Nuts to your prediction/s. It will be based on perception of risk.
Does a given person perceive more benefits from one course of action, or the other? Human nature defies “logic”.