Bathtub vs. Walk-In Shower

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I just bought a duplex where the first unit is a 1 bedroom 1 bathroom and the second unit is 3 bedrooms 1.5 bathrooms. I was wondering about your thoughts about whether a tub is necessary for the first unit?

The benefits of converting the (very outdated) bathtub to a walk-in shower would be opening up the bathroom to make it look larger and the costs would be cheaper.

The only potential negative I see, which is pretty big, is that this will turn off renters. I think this problem would be more steered towards 3 bedrooms 2 bathroom units in which a family would be more likely to move into.  I plan on renovating the 2nd unit bathrooms as well but plan on leaving a bathtub in there.

I appreciate any and all feedback, Thank You!