You wont really be having any choice but to have different wallets specially if you do own different cryptocurrency which does have different blockchain which is understandable.
But if you do own only one coin then there's no point on having multiple wallet specially if its a non custodial ones.Having only one wallet would really be enough or sufficient
but if you dont mind about spending fees on active transactions then go ahead or its your choice but if you dont like hassle then having one would be enough
but if you are paranoid with security then having multiples would lessen up the risk on losing all of your assets incase you do get hacked.

I tried saving my BTCs in multiple addresses but in the end, I still sent them to our local exchange where it can be easily converted to cash, where the latter can be used for various payment of services or products. The only downside is, there are lots of KYC documents that are needed to be passed in order to avail these feature as this is considered the local exchange in our countries.

Generally, it is advisable to save your BTCs in multiple wallets in order to scatter and divide the risks but it is better to save them inside a hardware wallet for maximum security.

I doubt that it could. I mean technologically speaking there could be some method that we do not know, but that would require a ton of stuff and I doubt that it would happen that way. I believe that we should be focusing a bit more towards reaching something personal in a level where exchanges could be trusted, and be individually solid for all of us and our family could get it if anything happens to us.

Like if anything happens to me, my wife could open my laptop and get all of my coins, wouldn't really be a problem at all. Would take a while for her to figure it out, or maybe she won't even do it I don't know, but if she wanted to, it wouldn't take that much time, would take like 10 minutes max to figure it out.

Splitting your Bitcoin to a different wallet isn't bad actually. But it doesn't necessary if you can handle it properly. You may use your wallet on different devices and split simply. But I am not a fan of that. I hold my assets in Ledger those are for a long time. For a short time or trading, just use the exchange. That means I already split my funds. So better use a hardware wallet which is secure than wallet software. Even you don't need to split if you can secure your device and seeds.

Depends on each person, If you are not sure about only storing it in one bitcoin wallet then it's not a bad thing to store bitcoins in several wallets.  Maybe for those who plan to store bitcoins for a long time.  The important thing is that the phrase seed is stored in a safe place.

I have multiple Exchange account and multiple personal wallet. Which wallet i use for different work in different time. I have some bitcoins in all my wallets.  Although the amount of bitcoin is very small. However, if the price of Bitcoin goes up a lot, I will get a bigger account if I combine all those Bitcoins.This is a capital of my future he he

The main thing in this case is to be confident in this wallet. Otherwise, the result may be unpleasantly surprising, and then it will be more difficult to avoid losses.

dividing space and anticipating what needs to be secured is an alternative.
the internet is not always safe and under control. we can find out the dangers of intruders and do security faster so that it doesn't widen and wide. a lot of wallets would also be better if given double protection with hardwhare wallets with existing manufacturers. of course many choices.
that's right, the op chose the cold wallet, although I keep it in the hot wallet for a timely transaction.
all users have reasons for the future, savings and long term.
but i get paid signature to trade in the market and make a profit.

yes one must save in multiple wallets , thats the best practice , in case of mishappening atleast one could be saved, and also in my opinion , one should share password with someone in family as previously many cases have been reported where people lost most of the funds when the person holding the crypto have been no more, or have gone through certain unrecoverable disease..