Or one could start a business part-time and only switch to it full-time when/if things are going well... which is what the Warby Parker founders did and now they are either CEOs of or are on the board of a unicorn start-up.
You have to take risks owning a business. Even when your business is big you have to do scary, risky things.
Making almost any product or expanding your business involves large upfront costs and then hoping it is profitable. When you look at CEOs you think its all rainbows but I assure you it is not.
