really having struggling with the decision on which coin
I am creating a dragons den kind of place
where coins are exchanged for fiat/eth which is used for buying property/businesses which then create value in the coin as it is a fractionalized share of the asset
I didn't really understand your idea. I'm not familiar with dragons den.
By "asset" are you referring to each property/business? If these assets are bought with ETH or fiat, how are they related to the coin? What determines what asset(s?) each coin is a share of?
your question “how are they related to the coin? What determines what asset(s?) each coin is a share of?”
if ERC721 then I would be in the variables of the contract
if ERC20 would be a separate ledger
The first question a non-technical person asks but what is the vale of a crypto
A share is a percentage of a company
A dividend is a percentage of the profit
an ERC20 would be a share of the company
an ERC721 would be a share of the individual investment
both are backed by an Asset/business
both make dividends
both have the potential to rise and fall depending on the profit and value of the individual asset
I think what @frangio is asking is how the token (let’s call it $COIN from now on) is related to the properties. If I understood correctly, you buy $COIN (from a contract or a seller) by using ETH for example. Then you use $COIN to buy a property (a real one? a digital one?) and this somehow creates value for $COIN?
Unless I'm misunderstanding, I think you're wrong here. Each ERC721 token usually represents an entire non-fungible asset, like a game character, not its shares. If you're thinking of shares then you probably want an ERC20 token, because shares are fungible.
If your system is going to have both digital shares and digital non-fungible assets, then you might want an ERC20 for the former and an ERC721 for the latter.
You might also be interested in looking into ERC1155 which is still being developed (and is not in OpenZeppelin yet), which combines both ERC20 and ERC721 into one.
Also, why do the coins have to be exchanged for fiat/eth AND THEN buying property/businesses? Couldn’t you just directly tokenize the fraction of the property/business?
PS. Sorry if I misunderstood anything, the idea isn’t 100% clear to me (although I am familiar with dragon’s den)