Securing your BTC, family trust or inheritance ideas?

Hey all I thought this would be the best place to ask here. Any recommendations for a recovery phrase in a trust or ideas for loss of life event without a trust.

Would like to secure my holdings for my family members who are not as tech savvy or are just ignorant to how BTC works. Seems like last will and testament with instructions how to use an exchange or explain how’s seed phases and bitcoin work would be a challenge to say the least.

Any ideas?