I traveled all over the US (van camping, tent camping in the woods), traveled Asia and some Central America. Its a common question. When I leave the country it comes alot from women because they are scared for me, think I am brave or I am naive. I have had quite a few conversations about this. Most of the men think its sexy or whatever testosterone mandates the unevolved ones to think and hit on me. I do get concern from some men and it is valid since I have almost been raped while traveling quite a bit but mainly in Europe.
I think that there is surprise because overall most women don't want to live out of a van by themselves, camp by themselves in the woods for a year or travel internationally alone (though I see more younger women doing it).I can see their point of view and if you don't have it in you, you just dont. I think some of it could be concern. Obviously you have a weapon like a gun or taser so your fine, thats what I told some people especially if I was out far in the woods and met some stragglers out there.
Really being able to have done what I did and now travel internationally with just my kids is a luxury. Most young or older women in other countries need to work or help take care of their brothers and sisters, their children if they have any or try to get a "better" life as in go to school or save money.
But I do hear you it is annoying..
If you ever explore Europe you'll see how much you get hit on there. I was grabbed three times in bars and they just kiss you on the lips drunkenly. It was fucking weird.
Anyway good on you! America is a beautiful place its fun to explore it!