Wheelchair: practical or "giving in/giving up"

I bought an electric wheelchair last week. Not for my usual running around and day to day life, but to help with pain/energy management on vacations. We have a cruised planned and I want to be able to enjoy the ports without crashing afterwards. That was my thought process at any rate. Since then I have been second-guessing myself, wondering what other people will think, wondering what my family will think, worrying about the costs and logistics - well, you get the picture. Any thoughts to stop this spiral?