There is no reason a Fender Telecaster should be any harder to play than other guitars. It has the same 25.5-inch scale length as the Stratocaster and many guitars, and it isn’t a particularly heavy or big-bodied instrument.
While the thickness of Fender necks vary depending on production year and model, they are all pretty comfortable, even for people with smaller hands.
The single-cutaway design may make it appear harder to fret some of the notes on a Telecaster. But, if you look closely, you’ll see that where the neck joins the body on the bass side is about the same as on a Strat, and slightly lower than on a Les Paul.
In fact, beginners may find the Telecaster a little more agreeable than the Strat, simply because the Tele has a fixed bridge where the Stratocaster typically has a tremolo system. This means the Tele is a little easier to set up and keep in tune, especially for those who are inexperienced when it comes to working on guitars.