Well, if you showered after the gym session, you could blame it on your post trainer session shower being the “shower you didn’t otherwise need” that takes up more time
One of the best parts of lifting at home in the AC is it has no impact on showering. I can get through a pretty grueling one hour workout and not break a sweat.
I hear you on the kids - have a 3 year old and 6 week old. While 90% of my trainer sessions are before they wake up, I hate spending a Saturday/Sunday morning for 4-5 hrs away from home on the bike. Since I drive to my weekend long rides, now THAT can be insanely time consuming vs the time spent doing the actual activity. Even worse If I want to ride gravel, it’s 75 minutes each way (which I don’t do often).