In all my years of RV ownership, I've had only 30 amp trailers. Never had a problem with 30 amp only. But, do have to be mindful of what is running before turning something else on. But, never really a problem. Funny, I've never popped the breaker at the box, but have popped individual breakers inside the camper. It's a way of life, you get use to it.
It's hard to fathom that some older homes were originally wired for only 100 amp service! And today's RV are 1/2 that! With modern gizmos and gadgets, a home 200 amp service is now becoming obsolete.