Older men on dating sites

I'm attracted to older men my ex was 16 years older than me, then i met one guy online who is 18 years older than me, which was another immature individual. I've come to notice that some of these older men is only the apps to play. Their profiles clearly states they are looking for something real and permanent, but the moment we start chatting i can sense that they are only on there for ir quick fun. Now I'm wondering am i the problem or are they themselves just confused and don't know what they want. I'm starting to think the dating apps is just not for me and it's best to just not focus on finding that one. Wait for the unexpected...