Terrible advice. Most businesses fail in the first year, and most people are not cut out to run a business. Starting a business is an incredibly risky (from a financial view) proposition since it takes years from your life as well as a huge risk to your life savings. Most people should get a secure, well-paid job they love or at least can stomach, and then invest their money conservatively, with capital preservation the primary goal, and satisfactory returns second.
Right now is probably the best time to go on world travels out of the last 20 years. You don't need to piss away $100k, a budget of even $10k will get you by. You are only young once, most oldsters would pay a lot more than $100k to be a debt-free 28 year old able to travel round the world pursuing drink, decadence, and debauchery. You will regret it if you don't do it IMO.
Abosolutely nothing....you are doing a fantastic job. I'd be looking for a home to live in and low ball offers until one gets hit. You have time on your side which translates to having to take minimal risk..
If you organize your life in a good way, you can enjoy life for at least 10 years while trying a lot of businesses starting on a shoestring or with outside investor's money.
Don't listen to anyone. Do what you desire, that is the right decision for you. You are on elite for a reason. Invest it, trade it, work it. Good luck.
Take 25K and travel the world like Surdo says you should be doing it like a king for about 3-6 months... And then get on with your life..
Do you even know why that is? Lack of proper planning and lack capitalization. Moreso the lack of capitalization to last. Most people venturing out to start a business are idiots who go out on a limb and get over-leveraged. They do it because they want to start a business, not because there is an actual opportunity and market. If you avoid that mistake and focus on the right opportunities, you will succeed. Lot of wonderful opportunities out there, just gotta be slick and think outside the box.