There's no such thing as a legal age to buy bitcoin. If you're old enough to appreciate it, you should be old enough to buy it. In practice though, most exchanges mandate a minimum age of 18, in keeping with KYC requirements.
Despite everything, how do I start a new Cryptocurrency?
How To Launch An ICO, A Detailed Guide
In every case, how can I make my Cryptocurrency valuable? If a cryptocurrency has a high token supply with little demand from traders and users, then the cryptocurrency's value will drop. Conversely, if the supply of a particular cryptocurrency is limited and the demand is high, then the value of the coin will increase.
Furthermore, what do I need to buy Cryptocurrency?
The easiest way is to buy cryptocurrency with a debit card on a centralized exchange. It really is as easy as buying clothes on Amazon. Coinbase, for example, is a popular interface to buy crypto with fiat (fiat = paper currency like dollars or euro). On Coinbase, users need to create an account and verify identity.
Can anyone make a Cryptocurrency?
Creating your own cryptocurrency is no easy task and will likely require some financial resources unless you can take care of things like development, documentation, and marketing yourself.