I'm going on my first solo trip Thursday - however, I don't have any kids. My 4 1/2 year relationship ended back in March so I don't have anyone to go with. Not that many of my friends are interested and many can't afford it. I'm going on the cheap - offsite - hotwire rate of $30 a night for 3 nights and my third night through Trivago for $69. Only doing 2 days - 1 park per day and I'm going to have a beach day as well. I've always been curious about solo trips and how it would feel so I guess I'm going to find out. I'm excited!!
As far as your situation, if you finances allow, no need to feel guilty. It's your life and life is short!! Have fun and enjoy every single minute.
PamNC