Let’s talk about Bitcoin and Ethereum.
Bitcoin has a supply cap of about 21 million coins; Ethereum has no hard supply cap, and its supply changes with new issuance and the burning of base fees.
Honestly, I hadn’t paid attention to this before either: you need to keep some ETH on hand to pay gas fees when using Ethereum; transaction fees on the Bitcoin network are paid in BTC.
$BTC and $ETH are the native coins of Bitcoin and Ethereum, respectively, but they serve different purposes.
It’s safer to take it slow with products you’re unfamiliar with and start by practicing with small amounts.