Hi
@Trickywoo and welcome,
I also understand the difficulties involved in finding services for younger people as my husband was 58 when he was diagnosed.
The search link provided above by
@jaymor was a godsend when I first used it as it brought up information on some great groups that I hadn't been aware of. I was lucky that there was a local group for younger people with dementia which my husband was able to attend alone for about a year - but to be honest, I soon found out that they didn't do anything any different there than what they did in the various other memory cafes we attended for all ages.
In the early years I also broadened my outlook to include groups which were not dementia specific. We found a fun choir, various community events and a disability social group via a variety of local churches (you do not need to be a church member). Local libraries were also a hit with social coffee mornings, short but interesting talks on a range of subjects and fun quiz sessions. The local garden centre was a good place to visit too, if only to just look rather than buy - but it also held monthly short talks about nature in general which were very interesting.
A local coach tour company provided a choice of day trips and a small local amateur theatre was great to visit from time to time as it was less overwhelming than the grander, busier theatres.
With the dementia specific groups I did have days when I felt like I would scream if I heard one more rendition of 'Roll Out the Barrel', 'We'll Meet Again' or 'White Cliffs of Dover'. However, when I took a step back I soon realised that my husband was actually enjoying the entertainment and age was not, and never had been, a barrier to friendships for him, so he was not at all aware that he was the youngest there. In fact, looking back, I think the old songs and reminiscence sessions were something of a comfort to him in that it brought back memories of his parents' and grandparents' generations and the things that were heard and seen around the family home when he was growing up.
The older ones found joy in talking to him as if he were a son and he enjoyed their company. It was a real family atmosphere.
Having said that, we did not completely succumb to the standard activities run for the older folks. I started to buy materials and activities more suited to my husband's interests to use at home - but I would also take them along to the groups we attended so that he had things to do there. The organisers soon came a-looking at our treasures and started to purchase similar things for any younger users that might join their groups - so in a way, by attending the groups rather than avoiding them as out-of-touch with our generation, we helped make them more relevant to a wider age group.
It was a win win situation, I was in social contact with other carers, my husband was happy - and the services were adapting.
i wish you success in finding some great opportunities in your area