ELI5 Pickleball - why has it become so popular?

What’s the difference between Pickleball and Padel? Why is it called Pickleball? Was it named after the family dog? Why is the court the same size as a badminton court? Who is investing significant money into the sport? Can Pickleball or Padel surpass tennis in popularity?
... we explain like I'm five
To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Join us on Twitter:
https://www.twitter.com/eli5ThePodcast/
or send us an e-mail:
ELI5ThePodcast@gmail.com