Its a tough decision and one many parents are having to make these days with jobs being hard to come by...... I would not quit the job you have, but it would not hurt to look around and see whats out there as your children are the most important things in your life and you would hate your self if some thing happened to them.
Its a shame that color plays into this issue, but I understand.... (((hugs))) and Good Luck.
Listen and the Universe will show you what to do (or what NOT to do)...... it always does,
I would not leave them alone that long. It can be murder on the younger ones. I speak as a middle child who was often left in the care of my sister, three years older.
Why not move closer to your job, if it's a good job?
Also, why are you responsible for transporting your brother and his girlfriend? If they are adults, they need to take some responsibility for themselves. If they are childless and you have 3 kids to also get to school, have them take the bus or car pool with coworkers if they don't own a car. It's put an unfair burden on to have to cart their butts around on top of getting your kids to school and you to work.
That's just it. Maybe it's not really cheaper when you add up the cost of the extra gas and wear and tear on your car, PLUS the extra time out of your day every day. We tend to forget that our time has value as well.
That may be a good plan. Trying to get out the door by 5:30AM is unreasonable, not just for you but even for the kids. Probably the whole family suffers from exhaustion that way. As long as your brother can have the responsibility to make sure they wake up and get themselves ready for school, that would work out well for all involved.
check out the internet for tips and hints regarding latch-key kids= there is alot and it is sorted by age and how to prep the kids--good luck
If they let themselves in the house- that's a term for it- no big deal
Go back in time and tell your younger self to never have children? ;p
How old is your brother and his girlfriend? Can you ask them to watch your kids in return for being their chauffeur? Not sure on the details of your job, but depending on how much you love it and how much you get paid, it might be worth finding one closer to home. Factor in the gas bills and wear and tear on your vehicle, not to mention your health (from the stress).
How about a babysitter?