Making friends at Smallsteps's age is very important, and if they are from different cultures, so much the better. It is easy for children to establish honest relationships, compared to adults who are always judging everything in our environment.
My son Matthew relates well with children, whether they are from the French or English communities, indifferently. When he travelled to Venezuela with me in 2022, he was embarrassed at first, but within a couple of hours he had settled in.
The culture difference isn't a language culture difference - it is a parenting culture difference. It is good to have a wide range of peers at any age though and it is something that I have always maintained throughout my life.