Anyone had any experience of singles holidays. I don't want to end up with a old crowd (no disrespect )

None taken as, in most crowds YOU will be the old one :-)
Cruises are a hoot, all ages, so much to do you cannot hardly
rest for fear of missing it all.

There are short, cheap ones and they are wonderful.
And they are best when you are younger and can appreciate all
the activities. I went on my first in my 20's.

(No disrespect) does not automatically absolve someone from being rude. Age is relative anyway.I have met 18 year old women who are a mess and there are alot of older women who are just gorgeous. It must work both ways surely. You are no spring chicken yourself and seasons pass fast.(no offence) As long as the brackets are there it isn't rude.()
Wrong.

hii

Resorts are an excellent option (next to cruises). They usually have the 'Entertainment Crew' who organize fun activities usually to cater for different age groups at different times of the day. You then pic and choose what you're interested in and you get an opportunity to meet other singles/guests.

I (used) to travel solo all the time and I've never felt lonely or crowded by people I did not wish to associate with.

I would recommend Hilton Resorts; I've never been disappointed by them in any part of the world where I've visited and booked with them.