Virtual Classroom use

We’re considering using for virtual K-12 classrooms this fall. We plan to set a unique conference name for each class and let the teachers notify the students/parents each day, before they meet, what the code is. This would be for a quick 20 minute-30 minute touch point. We like that there are no usernames and passwords to get in. Understand anyone with the code can get in but we think that we’ll be ok since it is ever changing and it will be unique and obscure.

As a maximum we would probably have 30 users in a meeting. Realistically it would be much lower.

Any foreseeable problems doing it this way?