"It's tough on the ones who are still in the most intense developmental stages, I've sort of observed," Paltrow shared. "My daughter is 16, she knows who she is, she's got her friends. My son would have started high school in September, and I think it's hard socially. But I've also been so amazed by how adaptable kids are during this time and how agile they've been. So hats off to all these kids around the world who are getting through it."