As someone who has been an expat in several locations and also divorced, I have found that it's not really due to age but down to where the people around you find themselves in their life and where you find yourself in life. When young people go to college a significant portion of them are in a situation where they would need to seek and develop new friendships. The same happens if you move to a location which has a…
One thing to note though is that one needs to pursue it proactively. Don't be ashamed to ask people to add you to their whatsapp group. Don't be afraid to supply other people with food they like, so they will remember you when they want to relax. And take off some time from your hobbies and work schedule so you can participate in meetups.