Water Source Block

While playing Minecraft on the switch, Ive notoced that watersource in cave create multiple source blocks and makes it much harder to block off. Ive had a water source block be in the middle of a path and then have to block of a few parts where it almost create a mini section of water source blocks. This can get super annoying in ravins when I just want to clear up water from the source and then it still leaves source block behind.