Any advice for a 70 year old male traveling alone in Europe?

I'm 70 years old. While I'm in decent health and fully mobile, I'm wondering if I should take any extra precautions as a solo male traveler in Europe. For example:<br><br>- Do thieves target senior citizens more frequently than younger men?<br><br>- Is there a particular hotel chain I should stay at?<br><br>- Are there certain cities that are better than others for septuagenarians?<br><br>- Are there certain clothing I should avoid wearing?<br><br>- Are there other safety tips for older men that I should be aware of?<br><br>Thanks.