About Asp.net

Yes you can start your carrier with .NET . As we all know that .NET is growing day by day with new things getting added like frameworks and platform independibilty and so on . There are always new things to learn in .NET so learning never stops ASP.NET you can start your carriee start with basic ASP.NET like building sample applications get your basics clear with ASP.NET like webforms and so on

Once you are through with that you can slowly gradually move to other technolgies like MVC,Angular etc .

Asp.NET is the best for future well there are some companies who are still hiring ASP.NET developer becuase their old projects are being developed in ASp.NET webforms and they want to customize or do some recoding here you can come in picture . So it ASp.net holds position in current market scenario.

But if you want to grow knowledge wise dont limit yourselt to ASP.NET try to learn other things too