What's the difference between ERC-20 and TRC-20?

I just decided to buy some Tether stablecoin to deposit at a casino but the exchange is asking if I want to send it an ERC-20 or an TRC-20 address? What the hell is that? They say if I make a mistake the funds will be lost and I won't be able to recover them.

I thought stablecoins were supposed to be less confusing than bitcoin but this all seems very complicated. Can someone please explain what this is all about?

 

it might sound a little complicated at the beginning but it's really not. erc-20 tokens are on the ethereum network, while trc-20 tokens are issued on the tron network. tether create tether dollars (usdt) on both the ethereum blockchain and the tron blockchain. many people prefer to use the tron blockchain because it has much lower fees. for example, sending $100 of usdt via the ethereum blockchain (erc-20) at a time of high congestion could incur a fee of $5, which is quite high. the same transaction on the tron blockchain (trc-20) would likely only cost a few cents.