Hi Lisa
Lone female driving a camper van will occasionally get some odd looks but not as often as you think. There again I'm used to odd looks anyway
As with lone female in a hotel bar on business you may occasionally get some unwelcome attention. It has happened to me twice. The most hideous was on a camp site in Belgium, two brit blokes sharing a caravan, over for the WW1 centenary, came back from a bar late at night and one decided to visit me. When I finally opened my door to humour him he then tried to invite himself in, which gave me cause to invoke the sort of language I must have learnt off my students ... honest!!
Fortunately opposite me was a group of young people sharing a very large tent and one of the girls, and her rather large partner, came over to see if all was ok.
That apart, (the second occasion far more benign, Brit stop in Cumbria, nice man, easy to get rid of), I have only ever met helpfulness and courtesy and I am always out and about and have been happy camping solo, RV and caravan as well as my Cali, for 20 years.
My one suggestion would be to try and camp where there are other people, at least one in five times, otherwise the Cali for a solo traveller can become a bit claustrophobic. That's me though, I am a naturally gregarious person and whilst I enjoy my own company I do also need to talk to people. Brit stops I use a lot of, partly because it gives me a perfect excuse to pop in a pub for something to eat and normally a nice host/ess to talk to.
Be safe. Try not to camp where there is no phone signal, positioned so you have a quick exit, but as I've said in other threads I feel safer in my cali than I do in my house when on my own. In my Cali I do have first class security systems, laminated or reinforced glass instead of feeble window pains, and a horn and lights to get attention if necessary.
Otherwise, I would go nuts without my cali. It is a home, a comfort, a joy and a safe haven all in one and if you have wanderlust like I have then it is the perfect vehicle to get to places other motorised travellers can only dream of getting to.