[groone]

ORM libraries have Value conversion functionality for such trivial examples https://learn.microsoft.com/en-us/ef/core/modeling/value-con...

[skydhash]

Not really. It's all about the code you need to write. Instead of wrangling the data structures you get from the ORM which is usually similar to maps and array of maps. You have something that makes the domain logic cleaner and clear. Code for mapping data are simple, so you just pay the time price for writing them in exchange for having maintainable use case logic.