Wouldn't timelocks be necessary for subscription/installment-like transactions? Say a 12 month membership where the entire amount needs to be locked down in advance (yet only spent gradually) so that the supplier has a guarantee that the purchaser doesn't back out of the deal

sirstackalot

not all wallet support time lock features, If you’re looking for a wallet that supports timelocks, you might want to explore advanced wallets or tools designed for more technical Bitcoin use cases, such as Bitcoin Core or specialized software for creating complex transactions

16d86e9daa

bitcoin_beginners

1) Adds complexity to UTXO mgmt for spendable balances.
2) Relative locktimes max at 455 days, after which you must re-spend UTXOs to re-lock.
3) Absolute locktimes break deterministic backups.