I wouldn't be worried but I wouldn't waste any more time. Being so innocent can be a lot of work/ frustrating for the guy. Simply ask somebody out or strike up a conversation with someone that you find attractive. Be realistic obviously I find super models hot, but I probably would be able to get one to be my gfriend. Good luck, there is hope :)
How often do you talk to new guys and drop hints that you may be interested in them romantically? It's entirely possible to live a full 100 years and never go on a date if you never put the effort in. If you're putting a lot of effort into dating guys and nothing is happening, then it's time to start worrying.
Depends. I mean if you don't get out much to places so the reason you haven't dated is because there just aren't many men around you then no, don't worry just maybe make some lifestyle changes... or try online dating. But if there are plenty of eligible me around you and just not showing you any interest... maybe worry then. Maybe means you need to change something. Or even just be more forwards, ask them out instead ;)
I'm 19 and same. I'm not really worried and I don't think you should be either. I just haven't felt ready but now I am and will probably start soon. I don't know if it's the same for you but your time will come. Do you not feel ready or have you just not met anyone you've clicked with?