Many parents decide to work at home because they want more time with their families. They hope to be able to take care of their kids themselves rather than pay for any sort of childcare. But is this really practical?
The answer really depends on your situation. There are a lot of factors to consider when taking a realistic look at what is best for you and your children.
How old are your kids?
The older they are, the less help you will probably need. Babies and toddlers are home a lot more than school age children, and need a lot of care. They also wont understand if you need quiet in order to work.
How strict is your schedule?
If you absolutely have to work certain hours, some form of childcare can help you keep your hours. On the other hand, if you can do a little work here, a little work there, and a lot after the kids are in bed, you might be able to get away without childcare.
How much do you really NEED quiet in order to work?
Even if your kids are older, the more quiet you need in order to work, the more help you may need. Obviously, if you have to close your office door in order to work, there needs to be someone...