I picked up a rider one night; fortuitously he worked for a local marketing firm that was trying to get a client’s name out. End result: I got free water for about 3 months, to give out to riders.
Now I pay between $2.99-4.99 every 2-4 weeks to buy my own. For that price I get 24-35 bottles.
95% of customers will decline to take a water. They want to save you money, they aren’t thirsty, they don’t drink bottled water, etc. But your Costco membership is now a business expense.
100% of customers appreciate the offer, a good percentage of them are outright amazed. If I can amaze you in the first 15 seconds in the car I’m almost guaranteed a 5 star rating. It’s a gesture of hospitality and trust to offer them something.
Honestly my tips and ratings increased immediately and water is the last thing I worry about getting spilled in the car. They bring it in with rain and snow and wet hair and condensation and whatever else anyway. Plus it helps people not get sick in the car. Settles stomachs.
If I offer you a water you’re not going to be sipping on your coffee, soda, vodka or smoothie in my car, less spill risk for me then. By giving you water, you’re giving me (some) control of what you do in my car.
There’s a very good article on here about how to maximize ratings and tips but I think it misses the mark on drinks.
Be safe out there.