I buy weed from professional growers who grow legal cannabis.
But I can understand the allure of home grown just for the pride of growing pretty good weed yourself.
Anyone can grow weed, but it's extremely difficult to grow what we call "top shelf" *consistently*
Amateurs can get lucky and grow the occasional exceptional high yield, high potency, high flavor plant, but to do that consistently over and over for different strains?
Few and far between. π
From what I hear on the You Tube, professional growers *never* accept clones from outside sources.
And they all have stories of what happens when they failed to follow that rule.
Clones with diseases or infestation such as "spider mites" can destroy an entire crop and force you to throw all grow media away and bleach down the entire grow room floors,walls, ceiling and ventilation vents. Lots of trouble.
That being said if you personally visit someone's grow and can verify that the mothers are healthy and disease free, go ahead and take all the clones you want.
Of course if you're growing outside on your patio, for example go ahead and buy those clones from unknown sources, who cares. Be sure to harden them off in the shade for a few days, that sun is killer here. π