Life insurance can be useful when you have dependents. What you need depends on what you want to be taken care of once you pass away.
Do not forget that there are also non-financial consequences of a spouse passing away, and I would suggest to take dispositions for your children to cover the event of both you and your wife passing away.
At least IMO $1900 a month would not a lot to cover for my passing, both in terms of pure income and unpaid work I do for my wife. First off I bring in over double that, and that's after retirement savings (which is really for both of us).
More importantly we both work, so I get kids ready for school/daycare, and sometimes pick them up. How would my wife do that if she was alone?
I get groceries, cook, clean.
In gender-typical fashion I do a lot of house maintenance, lawn care, and building furniture ($$ saved!).
So if I died my wife would have to get two kids out of the house by herself, work 8+ hours, then get them home, cook dinner, get kids to bed, clean the house herself, mow the lawn, fix the house?! Oh, and that's after loosing >50% of my paycheck. She'd have no time left in the day, and probably no ability to save for her retirement! Even with paid off house you don't get more time..
Or she'd have to hire a nanny, handyman, lawn care. But on vastly reduced income.
Terrible scenarios. And for what? saving few hundred bucks a year on life insurance. Not going to risk it. I'll carry it at least until the kids are in their teens.
(and "help from family" is not an answer. I refuse to be a burden on elderly parents just because I'm cheap and died, that's pathetic)