Teachers using imslp scores

[jaiserpe]

Hello, I'm developing an app for music education that works based on displaying scores.

Every teacher I show the app likes it a lot but I can not find many teachers that use public domain scores.

I would like to ask in this post a reply from the teachers of this forum who are keen on using public domain scores for elementary education. Like this one for example

https://imslp.org/wiki/Clarinet_School_ ... 2C_Sergey)

Thanks!