It can be practical but I don’t like the expectation it sets.
Creating a baby shower gift registry list is a great way to take some of the pressure off yourself. It’s a smart, timesaving way to get organized before your baby’s arrival, and it lets your family and friends know which essentials you’ll need and want.
The parent-to-be has no right to feel offended by people who purchase gifts that are not on the baby registry. After all, the guests didn’t have to give anything. The parent-to-be is required to show heartfelt gratitude.

sorry i think its presumptuous and greedy

I would not do a registry – I think they’re pretentious