Why aren't AFDD's a requirement in hotels like they are in HMO's Electrical Advice

Why aren't AFDD's a requirement in hotels like they are in HMO's Discussion ThreadWhy aren't AFDD's a requirement in hotels like they are in HMO's Electrical Advice

I understand that the IET say AFDD's 'must be considered' for hotels, however in HMO's, High Risk Residential Buildings, Student accommodation and care homes they are a requirement on sockets not exceeding 32Amps as stated in BS7671 (421.1.7). Why wouldn't hotels be compulsory? Is it just a cost thing or is there a valid reason? (I bet you can't guess what L3 Unit I'm doing extra study for? 🤣).

https://electrical.------.org/cours...onsumer-guidance/arc-fault-detection-devices/

Why aren't AFDD's a requirement in hotels like they are in HMO's for the original thread on Electricians Forums