If you prefer it with pedal, use pedal and let the critics go hang. IMO, half pedalling works better, so you may consider that option.
My point was that Mozart intentionally set a nursery rhyme. I think he'd want the theme childlike, simple.
That's a pretty good point. Thanks.
It would be were it true. Remember, Mozart didn't set a song called "Twinkle Twinkle". Those words were set to the tune in 1806. He set a song called Ah! vous dirais-je, Maman. It wasn't a nursery rhyme:
It's a French children's folk song.