Either permanently or for a visit?
Money, of course will protect you in many circumstances and mean that funds are available if you needed to return because of e.g. divorce or family illness, but we've seen circumstances in recent years which mean it's not necessarily as easy as it seems.
A friend emigrated to Australia and is genuinely living the dream, but I don't think she'll ever fully recover from not being able to return when her Dad was dying or from missing her funeral during Covid.
Another friend, a single man, took a temporary job in Amsterham just before Covid hit and was stuck for months, working from home, in his room in a City that was basically closed, but unable to return because of travel restrictions.
And an extreme, a friend living in the ME with her H, finally got everything in place to leave, but now doesn't know when she might be able to get a flight.
I'm not a risk taker, so probably not in the market to emigrate anyway, but especially the Holland "it's only an hour away" one makes me shudder.