For the last year I've been on well water for the first time in my life. High iron, manganese and iron bacteria - safe, but tasted eggy and ruined shower heads, dishwashers, clothes, washing machine, kettles...
I just finished installing a whole-house filter & softener system and everyone is delighted. I told my kids that once a month we're going to serve untreated well-water with dinner, so we stay grateful for it.
I like this form of parenting. Make your life better for your kids, but reintroduce some challenge so that they learn to appreciate the comforts of life.
As a fellow filtered well-water maintainer... just give it time. Even the best filtration systems break down. There are lots of moving parts to keep that water clean. Odds are you'll see or smell that brown water soon enough!
In a typical ion exchange setup, there isn't all that much. A big tank filled with resin to attract the minerals, and a big tank of salt to wash the resin clean.
Eventually, the resin will break down and need replacement, or the valve on the tank will fail. But neither of those are insurmountable to fix, and will tend to last many years.
Now, if you go with RO, that's different. Then you really need a pump and multiple filters which need regular changing. Those can be a bit more maintenance. (Not to mention all the wasted water)