As it continues to work on the issue of swelling school enrollments, particularly in the elementary schools, the School Committee is soliciting public comment on the way school district boundaries can be made more flexible. Children who live in school “buffer zones’’ in town may or may not attend the same elementary school as their neighbors. School district administrators will assign them to any of two or more nearby schools in order to even out the sizes of classes in the grade that the child is entering; the student would remain at that school under most circumstances. Initial proposals to change buffer zones around Brookline’s eight elementary schools will be opened to public comment on two Thursday evenings, Jan. 26 and Feb. 9, at 7 p.m. in the School Committee room, on the fifth floor of Town Hall, 333 Washington St. The proposals, the work of an ad hoc buffer zone subcommittee of the school board, will be posted on the School Committee website prior to the first hearing. “We want to hear the public’s input before we finalize these proposals and send them to the School Committee,” said Rebecca Stone, the board’s chairwoman. - Andreae Downs