I mean if the value is imported as a decimal, then a sort by that field will sort as decimal. This might not be obvious if a system imports 23.53, 53.98 etc - a user would think it looks good. It only becomes clear that it was an error to import as a decimal when we consider cases like “00.10”. E.g, package versions: 10.10 is a newer version than 10.1.
Types only help if you pick the right ones.