So Bitcoin is designed so that the value of it will increase over time as opposite to traditional money in which the value of it will go down. But won't that make it more like gold instead of actual money?
By the prices of stuff going up in traditional money, it encourages keeping the goods and trading them, for example if someone owns a house that house's value won't just go down with time, it can go through time. But if goods were to keep getting lower in prices then it can as a result discourage buying them and trading. Which makes Bitcoin unusable as money. To keep your money safe of course you can store in a bank as they give you a small amount of interest.
Bitcoin has a limited supply and as time goes by and its popularity increases the prices can go higher and higher, making it less effective to be used as usual money. Imagine how would a shop keeper feel as their good will only decrease in price. And like traditional money which has banks Bitcoin doesn't offer much solution to this.
So even if bitcoin prices were to stabilize, wouldn't it be more like gold than a currency to use like traditional money? Gold is very similar in those terms to Bitcoin.
This is a very good question and few people understand the nature and functions of money. You say that Bitcoin is more like gold than "actual money", but people forget that for hundreds of years gold WAS money. The fiat system that we have today only appeared in 1971, when Nixon ended the Bretton Woods agreement that pegged the dollar to the gold and every other currency to the dollar.
There is no problem if an economy uses a currency that is deflationary in nature. Quite the contrary, it will be best if everyone knows that their money will keep their value or actually increase in value. This will encourage saving, which is the only sustainable way to grow an economy. From a business perspective, you care about profit, or the difference between income and expenses. Even if your prices are forced to go down all the time, you can still make a profit if your expenses go down faster than the income.
Right now it is hard to imagine that prices for primary factors of production could fall faster than the prices of consumer goods, but it's just the reverse state than now. One big advantage over the inflationary system that we have right now is that there will be no more redistribution from the poor to the wealthy through a mechanism called Cantillon Effect. Basically those who get possession of newly issued money have an unfair advantage over those who get the money last, because they can buy the things they need at old prices, and the poor watch how their purchasing power dwindles and their income stays the same while every price increases.
This inflation if one of the primary reasons for inequalities in the world and why the wealthy stay wealthy and the poor stay poor. Get rid of inflation and the poor will get richer faster and the wealthy will not rise as fast as they do right now.