Beautiful downtown heritage areas can have transit going through them. The modern trams going through historic downtown European, and even some American, small cities haven't destroyed any of them yet.
Maybe people from south Brampton could take the LRT into North Brampton for the Farmer's Market.
Also, there will be a crossover before Wellington. The intent for the Farmer's Market (amongst other things) is to use the Wellington stop as a temporary terminus on days like the Farmer's Market, or the Christmas Market, or what have you (because LRTs don't need loops unlike streetcars).Having the LRT be flush with the roadway also allows the Santa Clause parade to use Hurontario; they'll just turn the LRT back further.
Also, the city, while wanting Sheridan to become a university, would also like Sheridan to expand into downtown Brampton itself (nevermind Algoma University already has a Brampton campus).