It's not always true.... BUT it is for 99.9% of the people who try. It boils down to a couple of factors....
Available land, knowledge, time, and a collection big enough not to care about your kids in the ground.
Black Pine grown from seed... in and out of a pot for various stages of development since 1957. Daniel Robinson has a huge collection of Black pines equally magnificent... this is actually a smaller one... some of his others are larger and spent more years in the ground.
This is big tree cut down....
See what I mean about the .1%??? I'm not part of that percentage group. lol cept the second half of course... though not THAT big. lol
Darlene... your lil rock says dream... So dream if you will... anything is possible... Put it in the ground.... and grow the living lights out of it. Or... get there faster the other way. Both have their place and their value. It's just a matter of if you think you have 20 years to invest.
Warmly,
Victrinia