Originally Posted by
windywheels
It is probably a very silly question and sorry about it in advance, but can bars be exchanged? can I have straight bars and change to drop bars if/when I need them?
Yes, it can be done, but it is sometimes surprisingly expensive. It depends on the bike. You will probably need new shifters and brake levers, and they can cost a lot. Before you buy, ask what it would involve.
Some upright handlebars such as those that come on the bikes you're considering can accept bar-ends which add a position or two to your existing handlebars. I have a pair on a bike I have, and I like them. I get enough variety that way.