Not sure if this is just snark, or really just that cynical, but it seems clearly false regardless. The senior in high school missing their last 3 months probably isn't going to experience any negative effects, but there are plenty of younger students at various parts of the learning curve that will definitely experience negative effects.

Reading, especially early on it life, has been found to correlate with academic and life achievement. Kindergarteners and 1st graders who have parents or caretakers able to keep them reading and learning at home will be better off than those who don't. Even if the absence just causes some delays in learning, it can easily lead to bullying and self esteem issues.

Is it going to destroy their lives irreparably forever? No, probably not; but suggesting it has no negative effect (the opposite extreme) is also wrong.

Yes, I'm sure. On your seventh birthday, you have lived for 84 months. So three months for someone seven years old is as much additional life as 17 months is for someone 40 years old. That is how much time of both schooling and bonding with friends that they lose with no easy way to catch up. It's a fact of life that the older you get, the harder it becomes to learn new things so you can't just extend the kids schooling with an additional three months.

I'm positive the quarantine will be noticeable in student assessment programes. The longer the quarantine, the larger the drop in test results.

In this case, we have an existing study. Some countries habitually have a three month gap, with schools closing at the end of spring and opening at the beginning of autumn. Overall, a three month gap in schooling results in sliding back by one month's worth of learning. So, missing three months of school results in being four months behind where students should be.

Source: http://www.ldonline.org/article/8057/

I believe the previous comment was implying that progress in school and personal development are not the same thing.

As a generalization for people reading these comments, that may well be true. Heck, many might do even better than they would have under normal circumstances. But, for others on the edge, they may basically lose a year in school, maybe not graduate high school as a result, and have a poorer life as a result.

I asked a teacher friend of mine. Her thought is for most of her kids losing two months of school isn't going to matter much. Most kids have years to catch up. And a lot of kids get some learning at home just from their parents. She's more concerned for her students that are in trouble already due to bad home environments. Those students will need a lot of extra help.

Check this out: https://en.wikipedia.org/wiki/Summer_learning_loss

Especially if it's not single students missing 3 months, but large groups of students.