The Horniman's decision follows a consultation with London's Nigerian community.
Phones should not be used or seen during the school day, the education secretary says.
Indie label Young Turks is home to acts including The xx, Sampha and FKA Twigs.
The Grammy-winning artist's cousin, Donovon Lynch, was shot and killed in Virginia by police.
Bluedot's organisers say having no "government-backed insurance scheme" means the risks are "too high".
The government gives the festival £3.5m for "enhanced Covid-19 safety and hygiene methods".
The officer of 25 years felt "helpless and angry" after falling victim to a Royal Mail parcel scam.
The post on TikTok failed to make clear it was a marketing communication, a watchdog said.
The new regime will be "unashamedly pro-competition", the UK's business secretary promises.
Another Round sees four men on an alcohol experiment and has become an Oscar-nominated success.