For me it's down to priorities.
When the little dears reliably spent every 2nd weekend elsewhere then I could audax every 2nd weekend. When that stopt then either I had to rely on unreliable ex or preferably reliable other people to ensure I could get away, so I needed to ensure I didn't overuse reliable other people.
For the last 7 years one or other dear has been doing exams in May/June and I wouldn't countenance being away in the weekend before an exam. So that's 7 years of having to do any riding at other times of year (eg school summer holidays, school easter holidays etc).
I doubt I'm the only person in this position. I'd be interested in how many blokes-with-children feel similarly constrained.
Nor can I justify massive expenditure on bikes as there's at least 7 more years of uni to flow under the bridge (over the next 4 years, as they start to double up).
Again, how does this compare to blokes-with-children?
So little dears mean less time to go cycling and less money to spend on cycling. But I'm happy with the trade-off.
And training? That means catching a train, doesn't it? I suppose I could, as well as the 1-hour round trip commute, go out again in the evening but after having planned/shopped for/cooked the evening meal and done any other house-related activities (confession, little dears aren't as well trained as I would like) I somehow haven't acquired any desire to make further efforts.