I feel like as you get older, friendships require a lot more effort and intention - you have to commit to wanting to be someone’s friend because everyone else is also an adult with so much going on in their lives! so people can seems a bit hostile and unwilling to open themselves up, but I would say the best way to make new friends is being the one to risk it first. You might be surprised as to how many people are willing to also open up once they know they’re not going to be emotionally dismissed!