We all use whatsapp but now days whatsapp service not good because their have some technical problems I have personal experience while I used whatsapp I send messages to my friends & family they also seen my message but I did not get blue tick from whatsapp . whatsapp also shows a wrong timings of messages they don’t note a proper timings of messages.
Now whatsapp updated documents attached feature but old version u don’t attach any while . in whatsapp u only send a 16 mb video not anymore so that’s the main problem of whatsapp . u can use a hike gud features