DBZ if time machine was not invented

In DBZ, if the time machine would not have been invented, it would not have been like future Trunks world because Androids were different in both the worlds. In current DBZ world, they are stronger but comparatively less violent. So here it goes.

1.   Trunks would not have come to kill Frieza
2.   Goku would have used instant transmission to come and kill Frieza

3.   Z-fighters would not be rigorously training for Androids but Vegeta would have
4.   Goku would have died of the virus with Dr. Gero unaware of that
5.   Vegeta would have been equally strong

6.   Vegeta would have defeated Android 19 (exactly same)
7.   Piccolo would not have been confident about defeating Android 20
8.   Vegeta would have defeated Android 20 as well
9.   Somehow if Android 16, 17 and 18 would have got unlocked then check that out
10. They would have defeated Z-fighters first time but not kill them
11. Then Piccolo would have merged with Kami
12. Vegeta would have used hyperbolic time chamber with Gohan, but would not have trained like Goku did because Vegeta trains alone
13. Vegeta would have come out equally strong but not Gohan
14. Gohan would have hardly become a Super Saiyan
15. Vegeta and Piccolo would have killed the Androids

16. Cell would not have come to this world via time machine
17. Krillin would not have married Android 18
18. Goten would not have been born

19. Imperfect Cell would have been easily defeated by Vegeta

20. Buu Saga changes completely as Gohan would have been too weak; also Goku would have been weaker too as he did not use time chamber and probably not Super Saiyan 3
21. Goku would have come to the World Martial Arts Tournament (same)
22. Gohan would not have fought Dabura
23. Vegeta would have killed Dabura
24. Due to Vegeta's curiosity, Buu would have any way revived

25. Goku and Vegeta would have fought together without Vegeta getting killed
26. Goku and Vegeta would have run away to Supreme Kai's planet by instant transmission
27. Goku would have taught Vegeta the fusion and also would have tried the Z-sword
28. Older Supreme Kai would have unlocked hidden powers of Gohan (same), but this will be of no use as fusion of Goku and Vegeta would have been easier and sooner; also Older Supreme Kai might not have unlocked Gohan's power because Gohan would not have removed the Z-sword
29. No use of earring fusion as its permanent
30. Mystic Gohan would not have entered the fight

31. No Buutenks or Buuhan
32. Piccolo would not have entered the time chamber and would have become chocolate

33. Vegito would have been born
34. Vegito would have fought with the Super Buu, much weaker than Buuhan was
35. Vegito would not have needed to go inside Buu to get Piccolo, Gohan, Trunks, and Goten out
36. Vegito would have been much stronger than Super Buu and would have killed Super Buu with ease in earth itself

37. Dragon Ball GT will remain more or less same because Gohan will get stronger as he was in GT by unlocking hidden powers
38. Good Buu would not have been there
39. Goku would not have been stronger than Vegeta