Subsequent modification of Custom Registration/Profile Fields

We have a field for certain interests among the members. These are radio buttons like “cooking, barbecuing, camping …”.
They have all already been created via the “Option Configuration File”.

The question:

Unfortunately, the client has now decided that some of them should be called something else.

Can I simply edit/rename them? Will this cause any problems in the database or will the new registrations simply be saved differently?

The format ala < i:0;s:25: “yxcvbnmasdfghjklqwertzui” > in the export / import function probably remains the same, right?

Best regards and Thanks!