I'm young and will never go back to flip phones. I got my first iPhone (a 4s) in 2011 and had that until 2016 when I upgraded to an iPhone SE which I have now. That being said, I will be moving from iOS to Android with my next phone. Although my first two phones have been relatively trouble free, I have personally witnessed Apple shoot themselves in the foot for years and years under Tim Cook by creating poorly designed hardware, poorly tested software, and extreme negative stances on right to repair. I've learned through independent repair videos that if a future Apple device I were to own had a design flaw or need professional repair, sending it to an "Apple Authorized Service Provider" will cost literally half the price of the phone and will result in the logic board being blasted with heat or chips being hacked to press up against their pads on the board to "fix" an issue. This is unacceptable.
My next phone will be a Sony Xperia XZ1 Compact. It costs a literal third of modern iPhones, has far superior specifications, and now I feel Android has superseded iOS in stability and freedom of choice. By the time I'm ready to ditch Apple it will be about 3 years old, but it has top of the line specs for today and performance will not be an issue. I also hate large phones and will not be buying one from any brand.