There are a few things to think about when you're buying a guitar for your child. I've taught guitar for over 12 years and seen some children be much more successful than others at playing the guitar.
I like to make sure younger beginners have a smaller guitar. How old is your daughter or son?
You also have to consider whether you want an electric or acoustic guitar. I recommend to buy whatever you think will most motivate your son or daughter to play.
I'm sure there are many decent options out there, but the ones I have had success with in the past are Gibson Maestro guitars.
The acoustic comes in 41" and 38" and I would recommend the smaller black 38" acoustic guitar or the natural finish.
Of course, these are fairly inexpensive options. You will be able to buy a better guitar at higher prices. But that may better in the future.
It can be nice to get a fold-up music stand, too, so she or he has a space to put her music when she practices.
Once you have a guitar, the key is set-up guitar lessons so your son or daughter can learn a structured way to practice. Paying for the lessons will help both you and your child to keep a regular schedule. It is well worth the time and effort.
Once you have a guitar, the key is set-up guitar lessons so your son or daughter can learn a structured way to practice. Paying for the lessons will help both you and your child to keep a regular schedule. It is well worth the time and effort.