Trying to learn about investing to help my brother.
My brother is a Police Constable making around £45,000 and is 27 years old. He wants to get into investing to build long-term wealth and buy his first home. However, he finds it quite complicated and asked me to do some research for him. So far, he has already put £15,000 into a Cash ISA this year, alongside £4,000 in a Lifetime ISA (LISA), and has £100 in a high-risk stock portfolio all currently on Moneybox. From my own research, a low-cost Global Index Fund seems to be the most recommended route for long-term growth, but I'm not entirely sure how the transition or mechanics work. I am also an adult now and want to make sure I understand this so I don't fall behind. Any advice on how he should manage or optimize this setup would be much appreciated!