How common is it now to change minds after agreeing to a date?

Hey all. So recently I’ve been running into issues where multiple people have, unprovoked, agreed to or brought up a second date after what I thought was a good first one, only to change their mind and often ghost at the last minute. I don’t even hear so much as a peep about there not being a date anymore. My thing is, how common is this now? I feel like even a year or so ago, I never ran into this issue, but now it seems like it’s popping up frequently. I’m kinda at a loss cause I’m not sure why these people would bring up a second date if not even remotely interested. As far as I know, I’m being very respectful and engaging on these dates, so I’m don’t believe I’m setting off any alarm bells that would cause someone to lie for safety or anything like that. Any feedback or anecdotes are appreciated. Thanks in advance for reading!