You might come back to discover that after several generations without oversight your trust has invested in bombing children and enriching the fund managers. I dunno.
All of Europe has gone through multiple revolutions, USA was only 30 years old back then so you wouldn’t have considered it ... that leaves what, the UK? Any parts of Asia that survived since 1797?
Nothing is risk-free, diversify! The likeliest outcome aside from coming back to nothing is you come back to an institution that is nothing like what it started.
https://www.nytimes.com/paidpost/franklin-templeton/investin...