Modern Vespa

Ouch. I'm pretty sure it's supposed to be pink.

Do you know how old it is?

As long as there is no oil in it, you're good.

It's a 2014 and the coolant has never been changed. The dealer claimed that it was inspected at the last service and looked good. Nope.

Your dealer should have advised you to change it every couple of years. What other great advice have they given you?

"Looked good?" Fail.

Actually, I looked at my correspondence with the dealer and he didn't actually say the coolant looked good, but he did say it had been inspected. Here is a screenshot of part of my conversation with him about this and the alleged oil change (the oil also looked filthy)...

Make a coolant change your priority. It's quite easy to do yourself, just make sure you flush the system a couple of times with distilled or de-ionised water and then refill with the correct coolant mixture of ethylene glycol (OAT) to protect your engine against further corrosion.

Sweet bike color, but that coolant looks like shit. I had a similar problem. Once the coolant gets over 2 years old, it isn't too effective at controlling corrosion. Flush it will a bunch of distilled water (or a flush product and distilled water), then do a coolant change with an appropriate OAT coolant. Here's what my coolant looked like after the previous owner let it sit for three years…

Given the condition of the coolant, I recommend checking brake fluid!!

I pulled this out of a 2006 Yamaha Morphous. It's an Arizona scooter, and has never been changed. It's supposed to look like lemon lime gatorade. I wonder what treating your engine like this does to the lifespan of the bike?

Maybe it's supposed to be Orange? They been making orange for about 30 years.
https://www.familyhandyman.com/article/difference-between-green-and-orange-antifreeze/

So many choices of colors these days:
https://garagedreams.net/products/toyota-red-vs-pink-coolant-which-is-better

I remember when we just had green or clear (plain water), and we liked it that way.

Nope, the system was filled with rust that was the same color as the coolant.

The coolant came out of my bike like that on the first service after I purchased it. It's a good example of why one should change coolant per the maintenance schedule. It does more than just keep the engine cool.