Interestingly hubby and I are the same age as you and your wife - and we have almost exactly the same asset values (but no inheritance and our "cash" is super and IP's).
Strangely enough we are not risk adverse - but we are cautious - except for a brain snap around 10 years ago when I got caught up in the frenzy. It means we look very carefully and research what we are going to invest in - whether that be share or property - so that when we see a bargain, we are in a position to pounce.
Being the same age as you, we are looking at moving from capital growth/accumulation to cashflow options. Almost all our super is sitting in blue chip shares 70% and cash 30% ... and we see our PPOR as an asset we can always downsize in the distant future.
As hubby is fast approaching 55 and "transition to retirement" we have decided that the share return just won't cut it for our current lifestyle ... and last thing we want to do is have to sell the share asset base.
As such, we're looking very closely at a particular low capital growth - high cashflow - business/property that the superfund can buy ... and even with hubby being restricted to only drawing 10%pa of the value until he's 60, the cash throw-off after expenses still produces more than he can draw (and three times what you bank interest is giving) and the balance can be reinvested back into shares and high interest cash.
Sure - there is always risk - but 99.9% of this will be mitigated by the time due diligence is finished - and by learning the business - and if we choose to outsource even the management of the business, we still come up with a higher income than he currently has by working.
It's not that you are risk adverse - it is simply that you don't understand all your options and how to go about sourcing the right ones.
Fear of anything comes from lack of understanding ... you're not working ... take this time to learn ... after all ... it is your future and there is no one better positioned to look after it than you