I'm worried about fees going too high when Bitcoin gets mass adopted. (I don't need to explain, 1 block every 10 minutes)
If Bitcoin fees go to $100 or more per transactions, then it's not viable for low and middle class, for mundane tasks like transferring some to someone, DCA a monthly low amount,etc
Bitcoin transaction fee is not too cheap, it's expensive especially if you make a transaction with low value. However, it is cheap if your transaction value is not too small, and if it is big value, that's good choice. Because Bitcoin transactions are irreversible, not like bank transfers or many other methods.
Compares to other years in Bitcoin history, it's time with cheap on-chain transaction fee.
https://bitinfocharts.com/comparison/bitcoin-transactionfees.html#alltimeNow you can move your bitcoin with fee rate at 3 sat/vbyte, with a confirmation in a next one block.
https://jochen-hoenicke.de/queue/#BTC%20(default%20mempool),24h,weightIf you use non custodial wallets, with control of UTXOs, you can control your inputs, outputs, fee rates, and I am quite sure that you can avoid $100 transaction fee.
Layer 2 doesn't seem to be the solution. Layer 2 means risk.
Bitcoin other layer technologies.Sidechain Observer - Bitcoin L2 Projects & current state of development