I've been doing WBD for years, my eldest is 17 and my youngest is 6. In that time I have sent them in as everything. Superheroes, computer characters, random animals, nothing at all because I totally forgot that year
and Oliver Twist.
What I have learnt is it's fun for children, teachers and some parents and it's a great conversation starter. Fun sponging adults should stop using it to judge people and throw shade on it.