talej on Nostr: If you timelock a UTXO / transaction for a kid 18 years in the future what approach ...

If you timelock a UTXO / transaction for a kid 18 years in the future what approach would you take to ensure:

1. The required information isn’t lost / forgotten over those 18 years

2. It remains secure and can’t be swept by anyone else obtaining the details

3. The specific tech used doesn’t become obsolete potentially rendering it inaccessible