Does Delphi have a future?

I've been using Delphi for almost 20 years now, I have worked in various industries and have also used other languages and IDEs like C#, Xcode, VB.Net, but while developing in other languages I have always been doing something with Delphi and I am a big fan of it. There are many reasons why I enjoy and have a preference to develop some applications in Delphi, but recently I have one problem with it.

The problem I have with Delphi is its future and the question that gets raised 'how easy is it to employ new developers?'. In the UK it is almost impossible to employ a good Delphi developer and can take years to find one. The other option is to employ a developer with good OOP skills and knowledge of a similar language like C# and for them to learn the language (currently no Pluralsight courses). The problem with employing a developer who does not know Delphi is they do not want to learn Delphi, it is not a big enough carrot on the stick and salaries in the UK are less than other languages.

What I would like to know are the selling points of Delphi to a young person who knows OOP and has some experience in software development. I asked myself the question, 'if I was young and needed to choose a language and development environment, would I invest my future in Delphi?' The short and current answer is 'No'.

Prefix class with 'I'

The other week I was looking at some code another Delphi developer had written and noticed that he prefixed classes with 'I' instead of 'T'. In my world the prefix 'I' means its an interface, but he argued that an abstract class is an interface and that all abstract classes should be prefixed with 'I'. I disagreed with him for various reasons, one being that Delphi standard classes do not do this.

Does anyone else prefix their abstract classes with 'I' and only use 'T' for concrete classes?