I've had this thought before. It's sad that none of blockchains in existence are free, you have to get their native blockchain currency to even use the platform.
use the platform for what? to hope the native blockchain currency goes up in value? what else is it good for?
For Bitcoin, that may be true. But on blockchains you can make dapps on, there are more uses, examples being: Ethereum, Solana, Cosmos, Hive, etc.
You will require native token to use dapps (this term includes plenty: dexes, p2e games, nft marketplaces, etc), On chains like Ethereum (this includes most EVM chains — Arbitrum, Optimism, Base, etc) you must need base crypto (ETH) to make token transfer. Without having native currency, you are stuck, despite the fact that you may be having significant value in token but without having native token, you won't be able to exchange it or make a transfer.