I'm not particularly worried about any imminent danger but with regards to climate change, rising sea levels etc... I do believe that, in the not incredibly distant future, political instability, mass immigration of displaced persons, (due to more areas of the world becoming inhospitable for farming, water shortages and war etc...) will be a massive problem and they'll be looking to come to places that are reasonably better off.
I'm not sure how one preps for this or rather future proofs.
I'm trying to future proof my children more than myself - I imagine I will be old or dead. Money and a house (with a garden) seem the most obvious ways, also living where there is little risk (no flood plains for me) and a reasonably stable economy regardless of the rest of the country. Nowhere currently overly populated - I think a big city would be disastrous in the long term.
Can you think of other things that will enable you to future proof for your children?