Whether you learn to play a "right handed" guitar or a "left handed" guitar, you will still need to develop skill and dexterity in both hands. If you play around with both lefty and righty guitars and feel more comfortable with one or the other, then you can certainly learn to play either one.
Either way, it will take a tremendous amount of practice and repetition and dedication and commitment to learn to contort your fretting hand fingers into very strange and unnatural configurations and to learn to accurately play individual strings or maintain various strumming patterns with your strumming hand.
Once you learn one way - if you are like most folks, you will not be able to play the other way and will not want to re-invest the time and energy to re-learn from scratch. In other words, if you learn to play on the more common "right handed" guitar and then later decide to switch to a left handed guitar, it will be like starting all over again from scratch - so you won't want to do that (it's like going backwards in your development).
So once you get to a certain point with either righty or lefty guitar, you will pass a point of no return (for all intents and purposes). It is absolutely true that you will find a much wider selection of guitars to choose from if you learn to play with your left hand as the fretting hand and your right hand as your strumming/picking hand. It's not uncommon to go into a music store and find over 100 "right handed" guitars and perhaps only one or two "left handed" guitars.
You can order a guitar to be built either as a left handed or right handed, and you can flip the nut and saddle and pickguard and convert some right handed guitars (if there is no cutaway). But either of those options translates into more money on each guitar (custom ordered are usually more expensive than in-store inventory). Eventually you may want several guitars and the scarcity and expense of finding "left handed" guitars could ultimately contribute to some frustration.
If you are at ground zero in your journey towards becoming a guitar player and equally inept at the present time with either a left or right handed guitar, and you don't have a strong sense that it will be easier for you to learn to fret with one hand versus the other - then you might want to learn to play the more readily available, less expensive, "right handed" guitar.
However, if you find it much easier to make progress learning to fret with your right hand and strum and pick with your left hand, and don't mind the limited selection and higher prices associated with being a "left handed guitar player", then you could certainly learn to play "left handed".
Good luck with your journey whichever direction you choose to point your guitar!