There is research showing that providing chick grit from a young age is vital for organ development! I would definitely provide it if you can find it. I personally had a tough time finding it last year due to people panic buying chicks during the pandemic, but eventually I got my hands on some
https://babel.hathitrust.org/cgi/pt?id=wu.89043737196&view=1up&seq=1
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001100650
https://babel.hathitrust.org/cgi/pt?id=wu.89043737196&view=1up&seq=1
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001100650