You’re a different Person
Time and Incident factors your decisions back then, your tweets could be out dated or taken out of context.
Change or advancement of Political or Social opinions
Embarassing old tweets maybe?
Finally, readers of old tweets are rare .. and usually “Diggers” type.
Here is how you could do some fast deletion yourself 🙂
After testing multiple sites, and for some experts chrome extensions that actually work too, here is a link that works for everyone.
Choose tweets, and options (Date etc) .. and make sure you do not look back.