I have 2 children.
The first was lazy and liked to be spoon fed. Daycare sorted that out as they wouldn’t pander to it! The second refused to be spoon fed from pretty much the get go.
No bottles after 1 here. DC1 went off drinking milk completely so had to ensure plenty of dairy in her diet. DC2 guzzles it happily from a sippy cup.
I use the CDC milestone tracker app as recommended by paediatrician when we lived in the US. It’s good and very easy to use.
My first started daycare at 15 months. My second will start at the pre school attached to DC1’s school at 2.5 years since I’m now at home.
Potty training at 2.5 years, reliably dry during the day very quickly, not dry at night until almost 4. Youngest hasn’t started yet as they’re only 1.
Nap dropped cold turkey at 3.5 years when we moved back to the U.K. and the preschool didn’t do nap time. Americans are very big on napping so it had been 2 hours every day until then.
Eldest had a single bed at 2.5 years, never used a cot bed. Youngest is still in the cot.
I used a soft spouted cup for water during early weaning, moved on to 360 cups at about 7/8 months. My 14MO can drink out of an open cup but he’s prone to throwing it when no longer thirsty so we mostly use the 360!
No experience with nap length reducing (see above).
Fork and spoon from 1YO. We’re really trying with a knife with the 4YO but they’re a bit resistant to doing their own cutting, unsurprisingly as they were lazy about feeding themselves as a baby too!!