Well done for going on a solo holiday . My late fil went on coach holidays after my mil died . He could talk for England and was very engaging . Everyone liked him and because there were fewer men on these trips , the women were queuing up to sit next to him.
Are there men on this trip ?
I think monopolising a conversation and talking about yourself is an age thing . I retired two years ago and have found the people droning on about themselves are older and often live alone and are maybe lonely or anxious. One lady I know always has to fill any gaps in the conversation. I just sit and listen .
The ones who drive me nuts though are those who ask about my AC, holiday , elderly DM , I get one sentence out and then they interrupt and tell me about their AC , holiday , elderly DM !!!