Long term investment strategy
I'm Currently 22 years old and am Investing £700 per month into S&P 500 via a Vanguard stocks and shares Isa. I've been investing for the last 2 years and I increase my monthly amount each time I increase my personal takings from my business. I also invest lump sum dividends in every so often.
I'm looking at this as a safety net and/or a nice pot of money to help family and friends one day.
My question is, given I probably won't touch the money for 30+ years, should I stay in S&P or move to all world?