Why Apple not give option on Whatsapp to send Music file?

Dear Team,

Why Apple not give option on Whatsapp for sending Music file? I am using sone trick but when i send music file via whatsapp other person download it but some time music file not played because of file not supported. What is easy way to send music file via Whatsapp with right format. If not any way then Apple should to look on Audio and give option to save audio file on camera roll so that we can easy to send audio file via whatsapp or any other social media software like picture and videos.