Unfortunately they have to if they want to make sure parents get it. Every week my school's sends out a weekly email of everything happening in the quarter with emphasis increasing as time get closer. Then there's emails for when parents actually have to do something like sign up. There's physical flyers. There's the private Facebook like app that reiterates when parents have to do something. And the public Google calendar. Parents STILL miss it. And it's not even a few. At this point I just assume I have to tell people in person with my own mouth if I want to make sure they'll do the thing for their kid (and thus make my kid's day better)
"We should have an app for our school, it's only $x00"
Me: What does it do?
Calendar and notifications about new posts
Me: The website already does that, there's a button to click to subscribe to the calendar, another to subscribe to notifications, and you can "install" the website if you want, all with open standards
Surprising, I actually won the argument and they didn't waste their money.
I mean, the school districts I've had kids in all had Microsoft 365 or gmail for the kids, I assume the staff is in the same system. Its really not that hard to send out invites and searchable emails.
I suggested maybe a calendar instead but got the standard “it’s all too hard” responses.