I'm a single woman of 64 who has traveled extensively in the past with husband & friends. Now, I will still most often travel with a friend but if no one has an interest in where I plan to go, I go alone & thoroughly enjoy it! Last year I traveled thru several cities in India by myself. I also traveled thru the UAE as a solo female & it was such fun, I met the nicest people.
I've been to every corner of the world & the US and since I am in the process of retiring and moving out of the large family home, I'm thinking that past travel was just the appetizer and the main course is yet to come... SO EXCITED!
I am far from wealthy but I have not regretted a dime spent on travel. It can be done fairly reasonably if you really shop it, take advantage of off-season travel. Between Thanksgiving & Christmas there are fantastic specials because most people want to stay home & prepare for the holidays, so I grab those specials. My kids know that Mom is rarely in the country for Thanksgiving, and if I am, they are driving me to the airport before doing the dishes.