Covid testing every 15 days for 3.5 yr old

I have my daughter in preschool daily and she also goes to Jiu Jitsu twice per week. We live in nyc and the mayor closed all public schools as of today due to COVID. She goes to a private school and it will remain open. Her Jiu Jitsu school also emailed me saying they will also remain open but want all students tested every 15 days and a copy of the test to be submitted. Am I wrong in thinking that’s excessive? There is no way she is going to sit for that test every 2 weeks, there’s grown adults who can sit once for it. I understand the concern about covid and both her schools sanitize and students wear masks and social distance. Neither school has had any positive cases and both have been open since september. Especially the private school which goes up to 5th grade and has daily in person classes for all grades. Would you do this to your child or cancel Jiu Jitsu?