The problem is, with many views at the moment and posts on this thread, is that so many people are completely clouded by a short term view, because what we're dealing with what is such a new phenomenon. It's amazing to read some of the comments on here, that seem to completely skip any forward thinking timeline about the steps we're taking to reduce the problem. People jump to forward conclusions on the basis of purely what we know now.
You have the entire world working on solutions to this virus, and day by day that passes, governments around the world will have more in their armory to fight it. Let's take mid June as a starting point, as it's in the spirit of the thread. By mid June, the UK will have a massive testing capacity, contact and tracing policies that have been developed, a likelihood of antibody tests rolled out on a large scale too. This all before you consider the impact of the treatments that are being tested and developed, blood plasmas (google it) and other drugs that are undergoing clinical trials that have shown promising signs of reducing symptoms. All this while the NHS will be far better equipped with the ventilators and other equipment it needs not to become anywhere near overwhelmed (even though it hasn't yet and we're supposed to be in the midst of the peak).
Furthermore, this is before you consider that the virus is believed to have already infected many who didn't know it, effectively being asymptomatic, so you've already started to build up some immunity among communities and the lockdowns around the world has already weakened this virus' capability to reinfect.
I could probably go on. The reason we're in this situation in first place is because it caught nearly every country around the world off guard and lockdown was essentially our only short term solution to reduce infection. But we will learn as a society to live with this virus long before vaccination comes into play, using every tool we've got to fight it. We'll evolve into a world for a couple of years that learns to keep a lid on the virus and understands the risks associated with it living with us. But as long as we take the right precautions and we shield our most vulnerable, we'll be able to get back on our feet to some extent and get our economies and lives moving again.
Perhaps most countries won't be open up for travel by the summer yet, and perhaps you won't even want to travel, but one thing is for sure, we'll be in a far different place. So don't jump to any conclusions yet.