Anyone can access and invest to crypto world, it only depends of your interest and how will you manage your funds. There's always time for anyone and even though they'll discover it very late, as long as it will give you satisfaction and guarantee, you will always have the great side of it. Crypto is always open for any ages because how will you see digitial world will depend on yout strategy.
Cryptocurrency is a business of choice and mind. In actual sense this cryptocurrency stuff don't have anything to do with age. Anyone who want to buy cryptocurrency should you buy it because it does not have an age bracket for investment of cryptocurrency so they are for I support every individual in any time they want to buy Bitcoin for long investment or short investment it depends on the interest as you said above or the person depending on what they want to use it to generate.