Yup, we all seem to have time constraints. For me riding in the morning is out. Folks suggest going to bed early and getting up at 4:30 for a ride? Well, that's about when I get up to go to work. No way I'm going to bed at 6 PM so I can get up earlier to go for a ride.
I also have kids. Oldest is 13. At only 13, she is OK with leaving home, but I don't want to leave them too long. My wife works evenings so I am on homework duty, dinner duty and referee (LOL) in the evenings. I go out for about an hour to hour and a half, but have to do it early as I don't want it to be dark with them home alone.
Not too many nice long rides happen on the weekends. My wife is now getting more weekend days off (she didn't have a weekend off for about 4 years) so I can get out occasionally, but it is still pretty sporadic. When she's off during the week it is tough because there are things we need to do around the house together, especially now out in the yard with spring finally here. It's tough too because I only see her about twice a week, so it's tough to leave when I haven't seen her for a few days.