I travel to visit family.
I travel to see new places. Road tripping.
I go out to the lake. or woods for some quiet time.
I go "camping" with groups.
First two, I don't really need the RV, since family gives me a place to stay, and much of my travel is overseas and to big cities where RVs don't work. A lot of it on ships. So the RV isn't the only thing.
I was in S. Carolina for 20 months, spent all my free days exploring that state, N Carolina on day trips, into Georgia and Virginia with overnights. Same with my 20 months in Indiana, two years in Florida, three years in Chicago. Don't need to be retired to travel and explore, don't need a RV. Just need the interest.
Intermediate years in Michigan, a lot of our travel was geology field trips, by car staying in a tent, or bus and cabins or armories. Some of our Florida outings were tent camping, some hotels, some sleeping in the car, but mostly day trips.
To some extent, the RV will limit, or focus, what you do, Destinations tend to become campgrounds and RV parks, visits are to smaller towns and rural areas more than the metropolis or megapolis. RV works OK for collecting national parks, not so well for major cities, but you can often park outside the metro area and commute into it.
You'll do in the RV what you can do in the RV. But if there are other things you want to do, where the RV doesn't work, don't let the RV keep you from doing it. Inside Passage to Alaska. Hawaii. Caribbean islands. Mexican Riviera. European capitols. Greek Isles. African veldt. The great cities of Asia and South America. If there is something else you want to see, OK for the RV to sit at home for a while.
If I visit DC, NYC or Chicago, I fly in and stay in the center of things, as I would for London, Rome, Paris, Singapore, Beijing, or Sydney. Whether here or across an ocean, really big cities are not very approachable by RV, or even by car. Houston, Dallas, San Antonio, St Louis, I can visit by RV and tow a car to get around. Towns of 5000 or less, just stop and park.