My wife and I had 403(b) and 401(k) programs as well as personal IRAs plus personal investments outside the retirement program.
My point still stands — he’s SIXTY years old and his only assets are his retirement savings? That is absolutely abnormal.
You and your wife appear to have looked at the long range goals of security in savings, with most with taxes deffered.
Good planning. Sector funds are always available, in case you want to try your luck with a small group of equities.
Good for a quick rush of excitement, if needed.