My bike commute is only 10-20 minutes longer (one way) than the train commute it replaces, and about EUR 4 a day cheaper. The stepkids, in their teens, are out of the house by the time I leave, traveling by train on their own, and may or may not be home before I come back. Their need for family time, at their age, is limited. The wife is more bike-obsessed than I am. And I've not been to the gym or to running training in over a year, without my time at running events suffering much.

So yes, worth my time, and not at all harmful to family life.