I’m remodeling my house. The kitchen sits directly above plumbing supply lines in the basement. I haven’t plumbed the sink or dishwasher yet, so I can easily run a dedicated line to the dishwasher if that’s the better option. The sink supply will be T’ed from 3/4” PEX lines below and through the floor (peninsula sink). I can then T the dishwasher supply from the 1/2” sink supply below the floor, or just T from under the sink, which is what I’m used to seeing. If I do it from below, I’d put a shut off there. The dedicated line with shut off seems like a cleaner installation, but wanted to run it by this forum first.