Index tracker is a suitable initial investment option. They have higher expected return then the managed funds. Although I think the major difference between index trackers have and managed funds is this that trackers are much simpler to operate. Generally, you can just pick your tracker and leave it to do its job for twenty years or even longer.
In comparison to that managed funds have a bewildering number to choose from in the first place and you also have to continually monitor the fund’s performance and even pick another fund should its returns fail to inspire or its manager depart for elsewhere which is a fairly common occurrence.