You can root all sorts of things, but the important question is will they grow and produce well on their own roots? Sometimes yes, sometimes no. Figs, pomegranates, grapes, yes, peaches, plums, etc, generally no - that's why commercial growers go to the trouble of growing rootstocks, hiring skilled workers and grafting them. Of course that also takes less scion material - one node to produce a tree instead of an entire cutting. Rootstocks however are often selected for various traits that will enhance the growth of what is grafted to it.

'Own root' roses, for example, which that industry has been shifting too, often do not grow as large as those grafted onto proven rootstock. And it can take longer to get a plant of salable size from a cutting.

It would be a shame to grow something from a cutting only to learn a few years later that your tree isn't prospering. But no reason to not try if it's a hobby and not how you make your living.  :)