Yes, but if you lose your job for any reason, you have to leave the country in a matter of days (I think you have 30 days, it might be a little more).

So, sell your house, all your belongings, take the kids out of school, move all investments... uproot your whole life in 2 months, maybe 1 month. That's not an easy thing to do, especially with children. It's not fair to my family - the kids would hate moving from the US back to India. Canada is much closer, culturally, and it's easier to adjust.

We decided to move as a family, and planned everything for more than a year.

This is personal, of course. Everyone has to make their own decision.

Sorry if I'm being overly detailed, but if you lose your job when in the later stages of a green card there is portability to a new employer, so there are options.

However, I do agree the uncertainty can be stressful. I went through a layoff when on H1B and it's not fun!

Yes, although there is some portability, you still have to apply, interview and get a job within 30 days. That's not feasible, and doesn't give you enough room to find a good job and negotiate salary from a point of strength.