I have been made aware in the last few years how easy it is for married people to deskill, especially women. If you have a husband who very competently manages finances, travel, online issues, phones and computers, servicing the car, and other details, you come to realise that you could easily lose the skills and confidence to do them yourself.
It is something I have watched newly widowed or divorced women realise - skills they once had, or confidence to try new things, has diminished over time.
I have also realised there is a risk that I could be the same. Husband takes care of many things, something I greatly appreciate. One reason I really enjoyed going to Dubai was the chance it was to prove to myself that I can manage on my own - international travel, bookings, metro systems, all the things you do while travelling. I have also taken over much of the maintenance management in our home, so I am the one learning about how to replace locks, change tap washers, and restore and revarnish wood.
I suspect all of us should make sure we put ourselves a little outside our comfort zone, learning new skills and maintaining old ones.
It's not a particularly profound thought and probably a rather obvious one, but something to keep in mind as the years go on.