Of course, Diane might be more concerned about how “quick” he is.
::: g, d & r :::
I got around Europe using Arnold’s method of frequently taking night trains. (At my current advanced age, I’d probably want to find a shower somewhat more frequently, now.)
I’m guessing from the comments, so far, that Eurail and Britrail are still completely separate. That means that whatever you invest in your Eurail Pass won’t do you a bit of good in Britain. (I don’t remember whether Britrail works in Ireland.)
I did Italy and Spain in April and had very few problems with the weather. Coming from San Francisco, I’d guess that you ought to dress the way you normally would. (It will be chillier up north.) April is a great time to see Venice, especially, because winter has passed, but the canals have not had time to begin fermenting, again. This is true of Rome and Naples to a lesser extent, as well.
Up in Coldy’s neighborhood, the tulips may be out, but what I really loved about the low lands was not the tulips, but the crocuses. They often plant them in their lawns so that a grassy park will be covered by purple and white cupped blossoms. The tulips are pretty, but they tend to be found in beds or fields devoted to growing bulbs.
Youth Hostels have no problems besides the dormitory atmosphere that I can remember. (In many of them, each guest is expected to do a certain amount of the daily chores–sweeping, washing dishes, etc.–but it was hardly a burden.) To use the Youth Hostels of the International Youth Hostel Federation, you have to buy a (rather cheap) membership card.
Ah! There was an aspect of Youth Hostels in the old days that might bug you–they used to insist that you be in bed by 10:00 pm. My understanding is that that situation has changed in the larger cities, but you might want to check it out before you invest in membership.
A Google search on “hostels Europe” or “youth hostels” will turn up lots of info. The International Youth Hostel Federation is at http://www.iyhf.org/
(A hundred years ago, or so, when I was using them, the American branch of the IYHF was located in San Francisco.)
Even without the Youth Hostels, there are a lot of fairly cheap penziones (spelling varies by country).