Optimal Mixture of Shower vs Shower/Tub Combo

[Bryan Weiss]

Say you're building a cabin and you have 5 full baths (4 attached to bedrooms), what mixture would you use for shower vs Shower/tub combo? 

A few things I'm thinking through:

-Do tubs increase your liability due to slips?

-Does having step-in showers appeal to the older guests?

-Would having all showers and only one shower/tub combos be best so little kids can still have their baths?

-Do cleaners prefer one over the other? 

Looking forward to hearing your thoughts on how you would optimize the bath set-up!