An oil pan leak could be minor, just a few drips, and might go several years without really needing repair. Or it could be significant, losing enough oil to make it necessary to check the level frequently and possibly causing deterioration of rubber parts that the oil leaks onto. Or somewhere in between those points.
The motor mount could be a little weak, not much of an issue. Or it could be broken, allowing the engine to move too much during acceleration and possibly straining some hoses or wiring harnesses. Or somewhere in between those points.
The shocks could be a little weak, not much of an issue. Or they could be shot, causing handling issues that at worst could result in loss of control. Or somewhere in between those points.
Too many auto repair facilities see something that’s not perfect and present it as a repair that is needed, when often it could give reasonable service for quite a while. They don’t accurately prioritize between “worth keeping an eye on” and “omigod it’s gotta be fixed NOW!”, making too many things sound like the latter when they might be closer to the former.
The most helpful thing for you would be to get a second opinion from a competent and honorable shop that can evaluate the degree of wear and give you a real-world assessment of the situation. This would include a judgment of how badly (or not) the repairs might be needed and how long they could likely go before really needing to be fixed.