I don't know if you refer to investing money or making our own venture, but I generally agree. It's the magic of compound interest and I think there's a lot of references to back it up. Apart from the potential financial gain, you will start building a good habit and mindset if you start early.
Compounding interest is the most powerful force in the universe. Compound interest is simply defined as interest being earned on interest. Knowledgeable investors put this practice to work and understand the longer money is put to work, the more wealth it will generate in the future. That is why the magic of compounding works best the younger you are when you start. The two ingredients for compounding to be effective are the reinvestment of earnings and time.