Diversity Fields - Do you collect this type information?

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Hello,

This post is more of a behavioural and company culture related query around how companies manage the option to collect diversity type data for employees within their business. 

'Out of the box' there are a number of fields visible and others that can be made visible should companies wish to show them. It would be great to hear how other companies treat these, do you pro-actively capture the information or treat them as optional? Or do you turn them off and only capture 'must-haves' - if not, how have you used the information (at a high level).

Any insight appreciated... when looking on the seeded screens, these are the types of fields I am considering in this post which are available under Biographical information and Person screens in the current Person Management information (and new hire process)