In response to Philosopher above:
“From dressing like adults in suit and hat, to putting on teffilin, making sure to daven with a minyan, expecting them to act with more maturity…”
Acting with more maturity is equally on boys and girls.
Tefilin and Minyan are my categoy b) above.
Dressing like adults in suit and tie has to be a new category d).
We have entire communities where weekday wearing of suit / tie is reserved for real Klei Kodesh.