They most likely are fine unless they are falling apart.

Depends on the quality of cupboards. In general, one should be good after 30 years, but seeing some pictures would help. I also hope people with more knowledge than me would share their opinion.

Are you planning a remodel in the next few years to fix the layout issues? If so, I would not do anything right now b/c it would be a waste of both money and material.

If not, then the cabinets will probably be able to handle stone (natural or engineered). I don't see any issues with their structure, but then again I'm only seeing a small section of the Kitchen and cannot see the interiors. In reality, it's difficult to say online whether your cabinets can handle the weight -- that's an in-person type of assessment. But, 30 years means in the 90's and cabinets were handling stone back then.

If you do replace the counters, consider adding more space behind the sink by a few inches (6"?) to reduce water splashing on the floor. If you're planning a seating overhang, then 15", at least (18" is better when behind a cleanup sink). Just be sure you don't get too close to a table, if there's one in that space. You should have 54" to 60" b/w table seating and counter seating that has at least 15" of counter overhang (if less than 15", then add the difference b/w the 15" and the actual overhang to the aisle space -- people take up the same amount of space in the aisle with or without the minimum overhang, they're just more uncomfortable b/c they have to lean forward so far, so you need to account for that "extra" space).

No, granite countertops are not too heavy for normal cabinets.

I hear you June. But I don’t have the stomach to do a complete gut. We’re seniors and will probably only be here 5-6 more years. We need a new stove and dishwasher so thought at the same time, I’d spruce it up and replace the 30 year old laminate countertop And backsplash. Not sure how much the quote on granite will come in? Not a big space. Maybe I should look at laminate again?

If you want granite get granite! :) Don't let internet trolls and party poopers change your mind.

So your cabinets aren't the current fashion. They still look nice (and some of us even like the style!). We--even those with PRO by our name--can not tell what the quality of your cabinets is. We can tell that they appear to be clean and in good condition and they're doing just fine for you.

I like Buehl's advice about making the sink area a bit deeper if you have space for it. Of course, this is your kitchen already so you know if that would be helpful. It does seem tight to me but I can tell from here that you are much neater than I am.

Thanks so much. I will definitely have It wider behind sink..but not for seating..just to prevent water from getting on floor. Appreciate your comments. We had the cabinets painted about 8 years ago..they’re still ok. In a perfect world I’d love new ones...but I’ve only got a few more years to travel and that comes before new cupboards and a kitchen redo.

We did the same thing when our stove died - replaced our tiled counters with granite. There are some really nice laminates out there so I would take a look at those. Also, if your counter area is small, you may be able to find stone remnants that could be fabricated for your space, instead of buying an entire slab.

(When you're replacing the dishwasher, is there any way to get more space between it and the sink corner? )

There are really nice laminates out there these days, as barncatz said. I like natural stone because you can set hot pots and pans on it but I prefer the look and feel of the new laminates. Laminate counters are warmer, more forgiving and easier to keep clean. Unfortunately, the nicest laminates are priced almost as high as the cheapest granites, especially if you're going to go deeper than 25".