Should I keep my avatar?

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Should I keep my avatar, or is it alright for me to change it around? I love the picture of my grandbabies (Mal & Star). I recently found out where I can get those cute animated pictures & am thinking about changing it to one of them. I look at peoples avatars to see which are my friends, I'm terrible with names. Are other people like me & remember the pictures. What do you think?