Is 7 weeks old too young for a kitten?

[7rider]

Hey all.
So, DH and I are going to be taking in 2 kittens from a litter had by a stray that my BIL/SIL took in up in NY. Kitties were born March 5th. They want us to take our two Easter weekend (April 25th, specifically, on our drive back down from visiting family for the holiday).
We think 10 weeks is a better time to take them....BIL/SIL insist babies are eating solid kitty kibbles and are spending less and less time feeding off mom, and will be ready to go on the 25th.
What do you think? Who has experience weaning kitties and is 7 weeks okay? We'd take two, so they'd keep each other company.
I never had a cat before. My parents took in a stray - but that was after I left the house post-college. We had dogs growing up, and - of course - I've had bunnies since '92. It will be weird to have a carnivorous pet in the house!