Could have Japan rescinded Sakoku voluntarily ?

Could've Japan opened up voluntarily before the Europeans get a reason to force her to ? Related to that, maybe there could've been an earlier regime change to facilitate it ? Was there any opportunity where Tokugawa Shogunate could have fallen earlier throughout its history ?
 
All Japan needs is a regime with an interest in ending Sakoku and the manpower to stop anyone who might oppose ending it. There is no reason any of the Tokugawa's couldn't end it. But at the same time, you need to make the Japanese less paranoid about what opening up can do. If more European powers were only interested in trade like the Dutch then it is more likely. All the time, you got powers like the Spanish and French demanding that missionaries go in, then it will only make the Japanese more paranoid.
 
There really wasn't any significant uprising against the Tokugawa during sakoku - the last real rebellion was in Shimabara just as the policies were coming into effect. So there really is no obvious point for an early overthrow of the Tokugawa. Potentially destabilizing forces did exist (the tozama lords, famine, plague, earthquakes, tsunamis, volcanic eruptions, squabbling Buddhist temples, the rival imperial court in Kyoto, corruption and in-fighting in the Edo court, a rising merchant class, increasing government censorship, hidden Christians, potential succession crises at the start and end of Tsunayoshi's reign, foreigners, etc.) that could work together to overthrow the Tokugawa, but you'll have to look closely and be creative. Remember, natural disasters were considered heavenly portents and disapproval of the Tokugawa.

As tonsofun pointed out, there's also the possibility of a policy shift by the Tokugawa without a forced opening. The question here is what benefit the Tokugawa could seek that would make such a drastic policy shift (and ideology shift) seem attractive. What could drive the Tokugawa to open the country up to danger?
 
There were a lot of factionalism and conspiracies as well some peasant revolt that could've carved a crack had it happened at the right time, from my understanding. There was indeed an overture by Tanuma Okitsugu to relax the Sakoku System in later mid-1700 but it was blocked. Perhaps if there was more crack within the Bakufu ruling class and weaker conservative atmosphere he could've succeeded. I guess it will take a while to nurture centrifugal force within the system, necessitating an early PoD to culminate a revolution or reform generations after. That's the general idea. With or without Tokugawa Bakufu.

My feeling is that restriction on Japanese traveling abroad will relaxed or even lifted. However there will be quick consolidation towards government-sanctioned trading monopolies by guilds and companies working hand in hand with centralization. While freedom of movement of foreigners in Japan will be expanded but still rigidly restricted or elaborately regulated. Ban on Christianity will be upheld as strictly as before until they will be forced to lift it, either by direct external intervention or through effective figurative hostage taking by Europeans.
 
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