Is it better to learn boring machine or lathe?

If this is the only information, then I think the boring machine is good for the following reasons:

Generally, there are more lathes in units, much more than boring machines, and fewer boring machines in small enterprises. You can also compare the price of machine tools. Boring machines are much more expensive than lathes.

I should understand, learn boring machine.

Even in the future, because you may change jobs, there will be fewer boring machines than lathes in society, but the salary will be higher (see the recruitment information). Once a boring machine is made, the bed is expensive, and few people can bore the machine. You are much better than a lathe.