Can we break these traditions asap?

Sex before marriage is a personal choice. Not seeing your bride before the ceremony is a superstition. Going into your wife's purse without her permission is just as disrespectful as her rifling through your wallet.

Nooooooo

Accept for the going into her purse thing, the other things you can break if you want to.
Many people have sex before marriage, that isn't a taboo any more.
Seeing the bride in her wedding dress, some people believe it's bad luck if you do but if you don't care about that then do what ever you have to do.
Going into her purse with out her permission is violating her privacy.

Why would you want to go into her purse at anytime? If you do that, why can't she go into your wallet anytime she wants? You're marrying a person, not adopting a pet! You sound like a classic control freak, who ALWAYS wants his way, no matter what. Not the catch most women I know would want.

WHERE on Earth do you live?
In North American, most couples have sex before marriage . .they even live together for some time before marriage.

Not seeing your bride before the wedding ... you want to get married? She wants to surprise you with how beautiful she looks .. so if she doesn't look beautiful as she walks down the aisle, you had better say she does anyway.

As for going through her purse, that is a violation of respect and of boundaries. If you cannot trust her, don't marry her because trust is 65% of what makes a marriage work.
And if you go through her purse for any other reason .. it is still wrong. And you are not marriage material. It is like her going through your phone .. or you going through her phone, for that matter. Just WRONG and disrespectful.

nowadays in America there are probably many more people breaking those traditions than following them (says a 60 year old who has never been married).

No sex,
That depends on the couples and their beliefs.

Seeing the Bride:
Some couples does first look before the ceremony.
Some couples sex up the reception area.
If you want to you can, nobody will stop you.

going in womens purse anytime you want?
Will you want her to go into your wallet? My husband hated it, I only went in if I had a 20 and wanted smaller amount of money. He did like the extra money.

The first one is advisable; the second and third are definitely not, if you want to stay healthy and in that relationship.

Sheesh, don't be so literal. These are just fun, old traditions, except the woman's purse. You never invade another's personal property.

If you're getting married, it's entirely up to you and your future spouse what traditions you include, and which you ignore.