Yes
As long as the bike fits him and is in good condition for the price, what's wrong with a nice bike to start on?
He'll feel better about itbecause it's the bike he want, he won't be fighting the limitations of the equipment and if he likes mountain biking he'll be set for a while.
If he doesn't like it, he'll have a better chance of getting most of his money back rather than trying to sell off a used low-end bike.
As long as the bike fits him and is in good condition for the price, what's wrong with a nice bike to start on?
He'll feel better about itbecause it's the bike he want, he won't be fighting the limitations of the equipment and if he likes mountain biking he'll be set for a while.
If he doesn't like it, he'll have a better chance of getting most of his money back rather than trying to sell off a used low-end bike.