Can you cut a shower curtain in half?

Hi. We are expanding our master bath and I'm looking for some advice. Originally we thought we would do glass shower doors; however, we have young children and think that a curtain might be more practical. The new bathroom will have a double sink vanity and the shower will be to the left of the vanity. We were planning to put a 1/2 wall to block the water (shower head is at the same end as the vanity) and then a 1/2 glass wall on top. I think even with the shower curtain we need the 1/2 wall to block the water. I'm just not sure how that works with a shower curtain. Any advice is greatly appreciated. Thanks!