so I wouldn't say that the children are not at risk.
As far as the quality of learning is concerned, I'm going to rely on what my buddy who is a fourth grade teacher told me. He said that the children that were good students are doing pretty well since they are not hampered by the other students who held the back. The students that were not as intelligent or that have parents who are indifferent to learning are falling further behind compared to if they were in the classroom.
I think that there is probably some impact on the social development of the students also. Participating in activities such as athletics, band, and plays provides the opportunity to learn about teamwork and mutual respect. I don't believe that the trade-off of missing those activities is worth saving money in other areas such as transportation costs or maintaining the brick-and-mortar facilities.
When I think back to when I was young, while I was in first grade my teacher was able to identify that I was having vision problems being nearsighted. I don't believe that teachers can make those determinations as easily on a video link. Other problems such as noticing that a child is being abused are also more likely to be missed. For those reasons, I see returning to the classroom as a necessity. There isn't much point to get back to the classroom for the few weeks remaining in this academic year, but I hope that traditional instruction will return in the fall.