And, like drop bars, there are many choices (probably more) in the specific "flat" bars you want. More angle changes, rise, sweep, than ever available with drops. And, there are also lots of choices in bar ends, to give you even more.

Along with the semi upright stance on a flat bar, for better availability and handling, you also get increased visibility (by others) in traffic.

Everybody can't, or don't want to, ride drops - and that's OK! That's why there are so many choices.

I rode drops for 40 years, and just can't any longer - but the flat bars are fine. Before drops, I rode typical flats found in the 1950s-1960s, and loved every minute. Drops really aren't as comfortable as many available bars. Sometimes, they just help you go faster and are more efficient. Fast and efficient aren't everything, especially when speaking about comfort. MHO based on 65 years of riding everything.

Get what you like, it's your bike, and you will be the one riding it!