They will accept her. It's a good choice to let her join playgroup. Teachers will guide her and she will learn words through songs and daily routine.
Of course they will:) the playgroup might start introducing her to more words through songs, which is a great way for her to learn language.
they will don't worry my baby at 23 months can't really speak well too
Yes mine started at 18 months old and not much words at that time